有英語高手或者會labview的高手幫忙翻譯下
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LabVIEW就是基于虛擬儀器的開發(fā)環(huán)境，本文闡述了基于虛擬儀器技術(shù)在阻抗參數(shù)測量中的應(yīng)用，根據(jù)電子測量的基本原理、計(jì)算方法和流程，利用了LabVIEW的特有語言—G語言—對被測對象進(jìn)行... LabVIEW就是基于虛擬儀器的開發(fā)環(huán)境，本文闡述了基于虛擬儀器技術(shù)在阻抗參數(shù)測量中的應(yīng)用，根據(jù)電子測量的基本原理、計(jì)算方法和流程，利用了LabVIEW的特有語言—G語言—對被測對象進(jìn)行程序編譯、運(yùn)行、修改并Z終顯示運(yùn)行結(jié)果 有高手幫忙翻譯下 展開
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- 夢幻魘憶 2009-06-13 00:00:00
- Labview is a development environment which is based on the virtual equipment. This paper elaborates the application of virtual equipment technology on impedance parameter measurement and uses the special language of Labview- G language to compile， run， correct and display the fianl result of the measured objects.
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- 有英語高手或者會labview的高手幫忙翻譯下
- LabVIEW就是基于虛擬儀器的開發(fā)環(huán)境，本文闡述了基于虛擬儀器技術(shù)在阻抗參數(shù)測量中的應(yīng)用，根據(jù)電子測量的基本原理、計(jì)算方法和流程，利用了LabVIEW的特有語言—G語言—對被測對象進(jìn)行... LabVIEW就是基于虛擬儀器的開發(fā)環(huán)境，本文闡述了基于虛擬儀器技術(shù)在阻抗參數(shù)測量中的應(yīng)用，根據(jù)電子測量的基本原理、計(jì)算方法和流程，利用了LabVIEW的特有語言—G語言—對被測對象進(jìn)行程序編譯、運(yùn)行、修改并Z終顯示運(yùn)行結(jié)果 有高手幫忙翻譯下 展開
2009-06-12 22:57:18
375
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- 英語高手幫忙翻譯一下
- ThequalitysystemofthecompanyisinconformitywithISO9002.Makingcomprehensiveuseofbiotechnology，thecompanyspecializesinmanufacturingandsellingC-4seriesorganicacidsandchiralpr... The quality system of the company is in conformity with ISO 9002 . Making comprehensive use ofbiotechnology， the company specializes in manufacturing and selling C-4series organic acids and chiral products. These products are widely used in many fields such as food， phamaceutical and chemical industries， and are well accepted by the overseas markets. The man products are L-Malic acid ， DL-Malic acid， L(+)-Tartaric acid ， Fumaric acid， Maleic acid and other organic acids. Annual productivity amounts to 20，000 tones. The company has become an important manufacturer of C-4 series organic acids in the world . All the products of the company have respectively met the different international aadvanced standards such as Food chemicals Codex， U.S. Pharmacopoeia ，British Pharmacopoeia and the products have obtained Star-K Kosher certificate. Above 70% of the Companys products are exported to Japan， Europe， Australias， the United states and middle East ， and they are renown and well recognized in the international markets. The company will devote itself to research and development of enzyme technology and organic electrochemistry. It will continuously introduce new food additives， chiral pharmaceutical intermediates， chiral auxiliaries and chiral drugs. Depending on superior quality， good service and high reputation， the company is willing to establish a long-term mutually beneficial business partnership with overseas customers and continue contribute to the happy life of humans. 展開
2009-09-17 10:19:02
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- 英語高手幫忙翻譯段英文 謝謝！！
- In this paper， the degradation of an azo dye Orange G (OG) on nitrogen-doped TiO2 photocatalysts has been investigated under visible light and sunlight irradiation. Under visible light irradiation， the doped TiO2 nanocatalysts demonstrated ... In this paper， the degradation of an azo dye Orange G (OG) on nitrogen-doped TiO2 photocatalysts has been investigated under visible light and sunlight irradiation. Under visible light irradiation， the doped TiO2 nanocatalysts demonstrated higher activity than the commercial Dugussa P25 TiO2， allowing more ef?cient utilization of solar light， while under sunlight， P25 showed higher photocatalytic activity. According to the X-ray diffraction (XRD)， X-ray photoelectron spectroscopy (XPS) and UV–vis spectra analyses， it was found that both the nanosized anatase structure and the appearance of new absorption band in the visible region caused by nitrogen doping were responsible for the signi?cant enhancement of OG degradation under visible light. In addition， the photosensitized oxidation mechanism originated from OG itself was also considered contributing to the higher visible-light-induced degradation ef?ciency. The effect of the initial pH of the solution and the dosage of hydrogen peroxide under different light sources was also investigated. Under visible light and sunlight， the optimal solution pH was both 2.0， while the optimal dosage of H2O2 was 5.0 and 15.0 mmol/l， respectively. Azodyes， which are characterized by the presence of one or more azo bonds ( N N )， are among the most notorious widespread environmental pollutants associated with textile，cosmetic， food colorants， printing， and pharmaceutical indus-tries. Because of their non-degradability， toxicity， potential mutagenicity and carcinogenicity， wastewaters originating from these dyes production or application industries pose a major threat to the surrounding ecosystems and human beings’ health.[1–3].Environmental concerns and the need of meeting the strin-gent international standards for rejecting wastewaters has made the development of novel and cost-effective processes for the puri?cation of azo dyes ef?uents an issue of major technological importance. 展開
2011-05-06 19:00:45
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- LABVIEW 虛擬儀器 高手幫我翻譯下好嗎?
- 4.VIRTUALINSTRUMENTAfoundationofthecontrolsystemdesignistheconceptofvirtualinstruments.Intraditionalobservatorysystemdesign，instrumentsaretypicallyconsideredentitieswhose... 4. VIRTUAL INSTRUMENT A foundation of the control system design is the concept of virtual instruments. In traditional observatory system design， instruments are typically considered entities whose design and components are fixed well in advance of actual use of the instrument. The approach works quite well when the role of the instrument is well understood with respect to the experiments it is to be used for. It also fits well with a system design where the instruments must be mounted on the telescope (e.g. mounting at the Cassegrain focus)， or exposed to the external environment - since the instrument is static， it can be more easily enclosed. However， this approach has some drawbacks in a laboratory style environment such as that provided by the ATST multiple-bench coude lab. In particular， providing the flexibility to explore new experiments results in a significant effort to adapt existing instruments to meet the requirements of the new experiment. The Virtual Instrument Model has been developed to address this issue， by abstracting the concept of an instrument from the specifics of the components used within that instrument. This allows the configuration of an instrument to be quickly adapted to meet the changes required by different experiments or changes to the laboratory environment. It should be noted that the virtual instrument is not a revolutionary concept but rather is the formalization of ideas often used in laboratory style experimentation. In the virtual instrument model， it is the experiment that drives the virtual instrument's 'design'. 4.1. EXPERIMENTS AND INSTRUMENTS Experiments are the heart of ATST operations and the control system is designed with this in mind. A laboratory style environment provides flexible support to carry out Experiments that are likely not understood or defined at the time the laboratory itself is designed. An Experiment undertaken at the ATST requires a Virtual Instrument. 不要機(jī)器翻譯的 要人工的 謝謝大家 展開
2008-01-28 20:42:17
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- 請高手高手高高手幫忙翻譯下面的設(shè)備名稱
- 請幫忙翻譯下：謝謝！斑點(diǎn)酶解系統(tǒng)自動斑點(diǎn)切取系統(tǒng)蛋白純化系統(tǒng)基因芯片掃描系統(tǒng)二維電泳梯度膠制備系統(tǒng)全自動電泳儀多通道懸液芯片系統(tǒng)體內(nèi)可見光成像系統(tǒng)如果您翻譯的十分準(zhǔn)確，我... 請幫忙翻譯下：謝謝！ 斑點(diǎn)酶解系統(tǒng) 自動斑點(diǎn)切取系統(tǒng) 蛋白純化系統(tǒng) 基因芯片掃描系統(tǒng) 二維電泳梯度膠制備系統(tǒng) 全自動電泳儀 多通道懸液芯片系統(tǒng) 體內(nèi)可見光成像系統(tǒng) 如果您翻譯的十分準(zhǔn)確，我將再加Z高分（好像是100分）。 我要英文，謝謝！ 展開
2009-07-21 06:02:17
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- 高手幫忙翻譯！！+100
- 虛擬儀器是一種新的測試與測控技術(shù)，近年來得到了迅速發(fā)展，基于虛擬儀器的機(jī)器視覺系統(tǒng)就是其領(lǐng)域的一個(gè)重要分支。本文圍繞基于虛擬儀器的機(jī)器視覺有關(guān)理論和其在玻璃瓶口缺陷檢測中... 虛擬儀器是一種新的測試與測控技術(shù)，近年來得到了迅速發(fā)展，基于虛擬儀器的機(jī)器視覺系統(tǒng)就是其領(lǐng)域的一個(gè)重要分支。本文圍繞基于虛擬儀器的機(jī)器視覺有關(guān)理論和其在玻璃瓶口缺陷檢測中的具體應(yīng)用進(jìn)行了研究。 針對玻璃瓶這一對象檢測的高精度、高準(zhǔn)確度、實(shí)時(shí)性的特點(diǎn)，本文提出了一種基于LabVIEW的數(shù)字圖像處理檢測方案，并在設(shè)計(jì)過程中解決了一系列關(guān)鍵問題：利用硬件和軟件的編程實(shí)現(xiàn)了對玻璃瓶口的缺陷監(jiān)測；使用閾值進(jìn)行圖像的二值化處理，并進(jìn)行開啟、閉合以增強(qiáng)圖像質(zhì)量；使用Vision Builder AI對有故障的圖像進(jìn)行故障特征識別； 通過理論研究與實(shí)驗(yàn)，證明了本文所提出的玻璃瓶口缺陷監(jiān)測方法是有效和可行的，為其機(jī)器視覺檢測的進(jìn)一步研究和開發(fā)奠定了很好的基礎(chǔ) 請用專業(yè)術(shù)語，不要用在線翻譯。謝謝····好可以多加分 展開
2008-06-10 11:03:29
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- 50分！高手幫忙翻譯一下
- LabVIEWisapowerfulandcomplexprogrammingenvironment.LabVIEWisshortforLaboratoryVirtualInstrumentEngineeringWorkbench.Itisapowerfulandflexibleinstrumentationandanalysissoft... LabVIEW is a powerful and complex programming environment. LabVIEW is short for Laboratory Virtual Instrument Engineering Workbench. It is a powerful and flexible instrumentation and analysis software development application created by the folks at National Instruments—a company that creates hardware and software products that leverage computer technology to help engineers and scientists take measurements， control processes， and analyze and storem data. National Instruments was founded over twenty-five years ago in Austin， Texas by James Truchard (known as Dr. T)， Jeffrey Kodosky， and William Nowlin. At the time， all three men were working on sonar applications for the U.S. Navy at the Applied Research Laboratories at The University of Texas at Austin. Searching for a way to connect test equipment to DEC PDP-11 computers， Dr. T decided to develop an interface bus. He recruited Jeff and Bill to join him in his endeavor， and together they successfully developed LabVIEW and the notion of a “virtual instrument.” In the process they managed to infuse their new company—National Instruments—with an entrepreneurial spirit that still pervades the company today. Engineers and scientists in research， development， production， test， and service industries as diverse as automotive， semiconductor， aerospace， electronics， chemical， telecommunications， and pharmaceutical have used and continue touse LabVIEW to support their work. LabVIEW is a major player in the area of testing and measurements， industrial automation， and data analysis. For example， scientists at NASA’s Jet Propulsion Laboratory used LabVIEW to analyze and display Mars Pathfinder Sojourner rover engineering data， including the position and temperature of the rover， how much power remained in the rover’s battery， and generally to monitor Sojourner’s overall health. LabVIEW provides an extensive library of virtual instruments and functions to help you in your programming. It includes conventional program debugging tools with which you can set breakpoints， single-step through the program， and animate the execution so you can observe the flow of data. 畢業(yè)設(shè)計(jì)急用，望高手幫忙翻譯一下 展開
2007-06-12 15:44:11
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- 誰可以幫我翻譯下這段話成英語，急用，求英語高手
- 本文簡述了國內(nèi)外有關(guān)大氣生物氣溶膠的研究現(xiàn)狀及其展望。主要圍繞生物氣溶膠的研究意義，生物氣溶膠的研究歷史，生物氣溶膠的種類及來源，生物氣溶膠的濃度及粒徑分布特征，生物氣溶膠采樣技術(shù)與檢測，以及對生物氣溶膠未來發(fā)展的展望等六個(gè)方面進(jìn)行了闡述。... 本文簡述了國內(nèi)外有關(guān)大氣生物氣溶膠的研究現(xiàn)狀及其展望。主要圍繞生物氣溶膠的研究意義，生物氣溶膠的研究歷史，生物氣溶膠的種類及來源，生物氣溶膠的濃度及粒徑分布特征，生物氣溶膠采樣技術(shù)與檢測，以及對生物氣溶膠未來發(fā)展的展望等六個(gè)方面進(jìn)行了闡述。ZD介紹生物氣溶膠的分布特征。 展開
2008-07-14 09:45:18
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- 請高手幫忙翻譯一下 3
- 2.2.1. Physical and physicochemical characterization The particle size distribution of the Ch-zeolite was determined using a laser diffraction equipment (CILASk 1064) and standard wet sieving (Mesh Tylerk series). Scanning electron mic... 2.2.1. Physical and physicochemical characterization The particle size distribution of the Ch-zeolite was determined using a laser diffraction equipment (CILASk 1064) and standard wet sieving (Mesh Tylerk series). Scanning electron microscopy (SEM-PHILIPSk XL20) was used for photomicrographs as well as to analyse the Ch-zeolite composition (Energy Dispersion X-ray， EDX). The sample was initially placed in a vacuum chamber for coating with a thin layer (few nanometers) of gold (Au). The specific surface area of the material was measured by the methylene blue technique and by nitrogen gas adsorption methods， with the latter also providing information about particle porosity. In the methylene blue adsorption method， aqueous solutions (50 ml) of methylene blue (100 mg l 1) were agitated using an orbital shaker (Marconik) for an hour at room temperature in the presence of different quantities of the Ch-zeolite (0.05–0.3 g). The suspensions were then allowed to settle for 23 h and the resulting supernatants were centrifuged at 5000 rpm before the analysis of the residual methylene blue concentration. Results obtained correspond to averaged values of three different experiments. The specific surface area was evaluated by the Langmuir model， assuming the formation， at high concentrations， of a dye monolayer and 1.08 nm2 molecule 1， for the cross-sectional area (Van den Hul and Lyklema， 1968). The Ch-zeolite specific surface area was evaluated by the nitrogen gas adsorption method， using automated equipment (Autosorb 1-Quantachrome Instrumentsk)， employing multipoint BET isotherm adsorption data fitting. Also from these data， the porosity of the material was evaluated through parameters such as volume of total pores (d < 206 nm)， surface area and volume of micropores (d < 2 nm; Micropore Analysis Method). Zeta potential measurements for the natural and ammonia loaded zeolite， as a function of medium pH， were determined using a Zeta Plusk equipment (Brookhaven Instruments). Suspensions (0.01% v/v) of the Ch-zeolite， previously sieved below 37 Am (400 Mesh Tylerk)， in a 10 3 mol l 1 solution of KNO3 were used and the medium pH was controlled with the addition of HNO3 (pH< 7) and KOH (pH>7)， separately. For the Ch-zeolite saturated with ammonia， suspensions of the material were prepared by the same procedure， except that the sample was loaded with 100 mg NH3–N l 1 of ammonia. 展開
2018-11-22 17:49:22
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- 哪位英語高手幫我翻譯幾個(gè)地名？
- 以下幾個(gè)地名和句子：（是可書面應(yīng)用的，不要口語，如是口語請注明） 1. 潘家園舊貨市場 2. 長安大戲院 3. 西單圖書大廈 4. 京廣ZX 5. 什剎海 6. 秀水 7. 建國門地鐵站 8. 百年奧運(yùn)，夢想成真。
2005-08-23 00:00:40
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- 哪位英語高手幫幫忙，翻譯英語文章！謝謝1
- 英語高手，謝謝了！ThecatalystsupportwasimpregnatedwithacetonesolutionofRuCl3.nH2Ouptorutheniumcontentof4w%，understirringfor6h.Afterconcentrationinarotaryevaporator，theobt... 英語高手，謝謝了！ The catalyst support was impregnated with acetone solution of RuCl3.nH2O up to ruthenium content of 4 w%， under stirring for 6 h. After concentration in a rotary evaporator， the obtained material was dried in air at 383 K overnight and subjected to preliminary reduction with a 1N2/3H2 stream at 698 K， and then cooled in 1N2/3H2 atmosphere. The potassium promoter was introduced by incipient wet impregnation with KNO3 solution at room temperature with molar ratio of K+ /Ru = 5/1. After stirring for 6 h and infusing for 24 h， the samples were dried in a rotary evaporator at 343K and then dried in the air at 383K for 12 h. The ammonia synthesis activities of the catalysts with about 35-60 meshes were evaluated by 1N2/3H2 flow of 2100 mL/h at 0.2 MPa from 623 K to 773 K. The amount of effluent ammonia was determined by titration method. As we can see from the Table 1， under the same reaction conditions， the catalyst K-Ru/Mg(Al)O exhibited the highest activity， 38.42 mL NH3?h-1?g-1 at 673K， 3 times more active than K-Ru/MgO， 12.88 mL NH3?h-1?g-1 at 748K. This means that selection of supports takes great effects on the activity of catalysts. The ammonia synthesis activity of different supports are K-Ru/Mg(Al)O > K-Ru/Mg-Al-Ca(1) > K-Ru/Mg-Al-Ca(2) > K-Ru/Al2O3 > K-Ru/CaO > K-Ru/MgO. The combinatorial supports showed higher activity than single supports. However， the sequence of temperature corresponding to the highest activity is just opposite to that of the activity. The optimal temperature for K-Ru/Mg(Al)O， 673K， is the lowest of all， on the contrary， that of K-Ru/MgO is the highest， 748K. The Mg(Al)O has a larger surface area of 140.95 m2?g-1 ， similar to γ-Al2O3， 110-180 m2?g-1 . The other two combinational supports have little surface areas but higher activities than Al2O3. It suggested that the activity of the catalyst is influenced not only by the dispersion of Ru crystals but also by the crystal structure of the supports. Table 1 Ammonia synthesis activities and BET surface areas Catalyst Optimal activity Highest activity Surface area of support temperature(K) (NH3/mL?h-1?g-1) (m2?g-1) K-Ru/MgO 748 12.88 K-Ru/Al2O3 698 23.79 K-Ru/CaO 723 23.22 K-Ru/Mg(Al)O 673 38.42 140.95 K-Ru/Mg-Al-Ca(1) 698 30.75 29.10 K-Ru/Mg-Al-Ca(2) 698 26.12 14.69 Acknowledgments This work was supported by the NNSF of China (20273053， 20023001 and 29933040)， the 973 Programming (001CB108906) and the NSF of Fujian province (E0310001). References 1. C. J. H. Jacobsen， S. Dahl， P. L. Hansen et al.， J. Mol. Catal. A， 2000， 163， 19. 2. F. Cavani， F. Trifiro， A. Vaccari， Catal. Today， 1991， 11， 173. 展開
2018-11-14 18:00:49
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- 求助：幫忙幫忙，機(jī)械英語NB的幫忙翻譯下
- The effect of beam diameter on the electron skirt in a high pressure scanning electron microscope R. Belkorissata， A. Kadouna， B. Khelifab， C. Mathieub，* aLaboratoire d’Elaboration et de Caracte′risation des Mate′riaux， Univ... The effect of beam diameter on the electron skirt in a high pressure scanning electron microscope R. Belkorissata， A. Kadouna， B. Khelifab， C. Mathieub，* aLaboratoire d’Elaboration et de Caracte′risation des Mate′riaux， Universite′ Djilali Liabe`s de Sidi Bel-Abbes， BP 89， 22000 Sidi Bel-Abbe`s， Algeria bCentre de Calcul et de Mode′lisation de Lens， University D’Artois， Faculte′ Jean Perrin， SP 18 Rue Jean Souvraz， 62307 Lens cedex， France Received 9 February 2004; accepted 19 March 2004 Abstract Helium gas and air are commonly used in the high pressure scanning electron microscope (HPSEM). The presence of a gaseous environment in the specimen chamber modifies the electron beam profile. In order to fully understand the beam-gas interaction， we have investigated the beam-diameter effect for two gases (helium and air) by Monte Carlo simulation. In this calculation， we have assumed that the electron beam is Gaussian and we have explored the influence of the nature of the gas at low voltage. When the beam diameter varies between 1 and 100 nm， there is no influence on the beam profile for these two gases. The resolving power of the HPSEM is not affected by the beamgas interaction. These theoretical results have been compared with experimental images obtained at low voltage under air and helium gases. The variation of image quality at low voltage has confirmed the interest of helium for use in a Field Emission Gun SEM (FEGSEM) in high pressure (or low vacuum) conditions. q 2004 Elsevier Ltd. All rights reserved. Keywords: High pressure scanning electron microscope; Monte Carlo; Electron scattering; Electron profile; Skirting 展開
2018-11-27 12:36:26
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- 跪求高手猛人幫忙翻譯！?。?！急
- 梨雌蕊RNA的提取及效果分析 梨是全世界一個(gè)重要的，分布廣泛的果樹。栽培面積大，歷史悠久。梨也是配子體自交不親和的代表植物之一。S基因是影響植物自交不親和的關(guān)鍵基因，現(xiàn)在世界上共發(fā)現(xiàn)了？個(gè)S等位基因，對植物自交不親和機(jī)理的研究起著非常重要的... 梨雌蕊RNA的提取及效果分析 梨是全世界一個(gè)重要的，分布廣泛的果樹。栽培面積大，歷史悠久。梨也是配子體自交不親和的代表植物之一。S基因是影響植物自交不親和的關(guān)鍵基因，現(xiàn)在世界上共發(fā)現(xiàn)了？個(gè)S等位基因，對植物自交不親和機(jī)理的研究起著非常重要的作用。 本實(shí)驗(yàn)從？梨雌蕊中提取總RNA，然后運(yùn)用RT-PCR，RACE等技術(shù)來獲取S15基因的cDNA全長，并用瓊脂糖凝膠電泳，核酸蛋白儀，套式PCE，質(zhì)?？寺?，目的基因測序以及生物信息學(xué)軟件來檢測，分析提取RNA的質(zhì)量。實(shí)驗(yàn)結(jié)果得到了高質(zhì)量的RNA以及S15基因cDNA全長。 展開
2007-05-30 15:31:02
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- 請高手幫忙翻譯化學(xué)名詞，急需~~~~
- 以下的技術(shù)指標(biāo)用語都是關(guān)于PVC顆粒的，請知道的幫忙準(zhǔn)確地翻譯~~~謝謝VICATPOINTHARDNESSTENSILESTRENGTHYIELDPOINTELONGATIONATBREAKFLEXURALMODULUSIMPACTSTRENGTHINFLAMMABILITYA... 以下的技術(shù)指標(biāo)用語都是關(guān)于PVC顆粒的，請知道的幫忙準(zhǔn)確地翻譯~~~謝謝 VICAT POINT HARDNESS TENSILE STRENGTH YIELD POINT ELONGATION AT BREAK FLEXURAL MODULUS IMPACT STRENGTH INFLAMMABILITY AV.A.P. IMPURITY PARTICLE NUMBER VOLATILES（INCL WATER） BULK DENSITY SIEVE RATIO “FISH EYE”NUMBER UNIT/400c㎡ RESIDUAL VCM PPM 展開
2007-03-13 04:50:47
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- 英文高手幫忙翻譯一下 壓力容器方面
- 公司接到一個(gè)壓力容器圖紙是英文版的想知道其中的一些意思，原文如下：一TECHNICALDATA:1.MAXIMUMALLOWABLEPRESSURE7.0BAR2.WORKINGPRESSURE5.5+/-1.0BAR3.TESTPRESSURE10.0BAR4.MAXI... 公司接到一個(gè)壓力容器圖紙 是英文版的 想知道其中的一些意思，原文如下： 一 TECHNICAL DATA: 1.MAXIMUM ALLOWABLE PRESSURE 7.0BAR 2.WORKING PRESSURE 5.5+/-1.0BAR 3.TEST PRESSURE 10.0BAR 4.MAXIMUM ALLOWABLE TEMPERATURE 70℃ 5.MINIMUM ALLOWABLE TEMPERATURE 0℃ 6.FLUID PREFILL（ISO VG46-HLP） 7.CORROSION ALLOWABLE 2mm 8.VOLUME 38.00L 二 TECHNICAL ACCEPTANCE: 1.CHINA DECLARATION OF CONFORMITY 2.CONFORITY ASSESSMENT PROCEDURE REPORTS 3.BILL OF MATERIALS 4.INSPECTION DOCUMENTS AND CERTIFICATES FOR USED MATERIALS 5.WELDING MAP 6.LIST OF WELDERS AND THEIR QUALIFICATION CERTIFICATES 7.NDE EXAMINATION REPORTS 8.VT AND MEASUREMENT REPORTS 9.PAINT: EXTERNAL:BLUE RAL 5015 SEMI-GLOSS FINISH INTERNAL:USE SUNCORITE 528 BY HENKEL METAL CHEMICALS TO TREAT INTERNAL SURFACE OF TANK 10.PAINT REPORT 11.TECHNICAL DOCUMENTATION AND OPERAING MANUAL 三 NOTES: 1.ALL DIMENSIONS ARE IN MILLIMETER UNLESS OTHERWISE NOTED. 2.GASKET CONTACK SURFACE OF ALL FLANGES SHALL BE FINISHED WITH 125-250 AARH. 3.INTERNAL WELD SURFACE OF INSTRUMENT NOZZLE TO BE FULLY FLUSHED. 4.PAINT INSIADE AND OUT PER OILGEAR STANDAR SOP-U-002. 5.TATAL WEIGHT OF UNIT ASSEMBLY IS 32，900LB[14，900kg]. 6.DIMENSIONS IN MM. 展開
2010-07-15 11:42:12
1127
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- 做質(zhì)譜的高手幫忙翻譯一下
- 下面是做氣相質(zhì)譜給出的參數(shù)，用的機(jī)子是：珀金埃爾默（perkinElmer）Clarus500GC/MS。拜托各位幫忙翻譯一下，謝謝Inst()ACQUISITIONPARAMETERSOven:Initialtemp35°Cfor2min，ramp10°... 下面是做氣相質(zhì)譜給出的參數(shù)， 用的機(jī)子是：珀金埃爾默（perkin Elmer）Clarus 500 GC/MS。 拜托各位幫忙翻譯一下，謝謝 Inst() ACQUISITION PARAMETERS Oven: Initial temp 35°C for 2 min， ramp 10°C/min to 150°C， hold 2.50 min， InjAauto=150°C， Volume=0 μL， Split=35:1， Carrier Gas=He， Solvent Delay=0.10 min， Transfer Temp=280°C， Source Temp=260°C， Scan: 5 to 300Da， Column 30.0m x 250μm 展開
2008-10-25 00:03:10
714
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- 高分請高手幫忙翻譯英文文獻(xiàn)資料（4）
- Whenliquidisheateditevaporates.Theevaporationprocessisdependentonpressure，temperatureandcompositionoftheliquidandgas.Gascanalsocondense.Inadditionthereisaconvectiveheattr... When liquid is heated it evaporates. The evaporation process is dependent on pressure， temperature and composition of the liquid and gas. Gas can also condense. In addition there is a convective heat transfer between the liquid and gas zone that must be considered. The surfaces in the gas zone also radiates from the shell to the liquid. During the blowdown process mass is usually evacuated from the gas zone， but also liquid might be released. The rate of release is dependent on density and pressure as well as the release area. As pressure and temperature change， the properties of all materials change. This has to be considered in a prediction of a blowdown process. The main purpose of a blowdown process is as earlier stated to maintain integrity of the equipment. The strength properties of the shell are the key factor on that matter. The strength is dependent on the inside pressure as well as the support forces. If the exposing forces produce stress that exceeds the ultimate tensile stress (UTS) in some regions， the integrity of the equipment is no longer maintained. In the design phase of a process plant， these aspects are crucial and must be included as a dimensional factor. For that reason prediction of the blowdown process is essential. Lately some new standards has been introduced to the industry on this matter [3] and [4]. VessFire [1] and [2] is a multi physics system designed for calculation of this kind of problems. It has been applied for some time in the oil and process industry on many projects. The system satisfies the requirements for predictions outlined in [3] and [4]. It includes all aspects described above including integrity of the shell. As part of the verification process some experiments where performed. Some of the experiments are presented here. EXPERIMENTAL STUDY The purpose of the experiments was to investigate the evaporation process and the heat transfer to the liquid and vapour. In a complex system it is important to reduce unknown parameters as far as possible. Exposure from a flame is difficult to control. Flux measurements are point values and not necessarily representative for the average exposure. In order to control the heat exposure it was decided to apply an electric heating system. The system and the verification of the system is described in [5]， [6] and [8]. The furnace was built inside a supporting tube. Figure 2 shows a general arrangement of the experimental outfit. A 0.05 mm stainless steel foil formed as a tube， 300 mm in diameter， generated the heat. The power supply was based on a 3-phase alternating current system giving 48 Volt output as maximum. The top exposure had a limit of 300 kW. The foil had a surface of about 1 m2， giving a heat flux up to 300 kW/m2. The power input could be continuously regulated from zero to maximum load. Each experiment was started from zero and brought up to the required load within a few seconds. After that the surface temperature of the heating foil was kept constant during the exposure period. Experiments with both dry objects as well as water filled object were performed. In this paper only water filled experiments are presented Figure 2 General arrangements drawing of the experimental furnace including the specimen and its support Figure 3 Illustration of the heating unit. The black part is copper conductors for the foil. The grey part is the heating foil exposing the specimen. The foil is equipped with thermo-elements all marked H， except H5 which is the temperature in a copper ring and H6 which is the temperature between the insulation and the supporting tube. 展開
2009-03-12 04:13:30
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