全部評(píng)論(4條)
-
- 長(zhǎng)階梯 2017-09-20 00:00:00
- water
-
贊(5)
回復(fù)(0)
-
- xinyukitty06 2017-09-20 00:00:00
- purified water
-
贊(16)
回復(fù)(0)
-
- 沫彤11 2017-09-20 00:00:00
- Purified water 純凈水(purified water):指經(jīng)蒸餾、去離子、反向滲透等方法生產(chǎn),符合Z新版的美國(guó)藥典純凈水定義的瓶裝水。
-
贊(13)
回復(fù)(0)
-
- 居古曜 2017-09-20 00:00:00
- pure water 望采納,謝謝!
-
贊(17)
回復(fù)(0)
登錄或新用戶注冊(cè)
- 微信登錄
- 密碼登錄
- 短信登錄
請(qǐng)用手機(jī)微信掃描下方二維碼
快速登錄或注冊(cè)新賬號(hào)
微信掃碼,手機(jī)電腦聯(lián)動(dòng)
注冊(cè)登錄即表示同意《儀器網(wǎng)服務(wù)條款》和《隱私協(xié)議》
熱門問答
- 純凈水英文翻譯
2017-09-19 03:21:33
643
4
- 英文翻譯
- Determination of the Illuminating Power of Chal-gas.—The value of coal-gas naturally depends chiefly on its .illuminating power. This can be determined in various ways. Of these, the most practically useful and easiest is the photometri... Determination of the Illuminating Power of Chal-gas.—The value of coal-gas naturally depends chiefly on its .illuminating power. This can be determined in various ways. Of these, the most practically useful and easiest is the photometric method, the amount of light emitted by a gas flame, burning at the rate of five cubic feet per hour, being compared with that given off by a standard sperm candle consuming 120 grains of sperm (7*79 grams) per hour. For this purpose, Btmsen's photometer, see Fig. 211, is employed. This depends upon the fact that the intensity of the illumination from a luminous point is inversely proportional to the square of the distance of the illuminated surface from that point. For flames- of coal-gas or candles, this law is of course only approximately true, but sufficiently so for practical purposes, and it, therefore, serves as the basis of a useful, though not very accurate, method of testing the illuminating power of coal-gas. All that is neces-* savy is to ascertain the distances at which the standard candle and the gas-flame both produce the same illuminating effect; it then only remains to take the squares of these distances in the inverse order to obtain the relative illuminating power of the two sources of the light. In Bunsen's photometer, the surface illuminated by the candle- and gas-flames, consists of a diaphragm of paper, Fig. 211, which, with the exception of a small circle in. the centre, Fig. 212, has been painted over with a solution of spermaceti in benzene, which renders the whole surface, with the exception of the central disc, transparent. This diaphragm is placed in a frame fixed to a moveable slide, which fits on to the long divided tod of the photometer (o'o), Fig. 211. Over this frame is placed a black shade containing two pieces of mirror-plate ao fixed, that when the observer looks at the diaphragm in a direction at right angles to the divided rod, he sees in the two mirrors a reflection of each side of the waxed paper At the right hand extremity of the rod is fixed the standard candle, whilst at the other the gas flame is allowed to burn, the rate of its combustion being accurately determined by means of the experimental gas-meter (p). 展開
2009-02-19 01:05:05
557
1
- 英文翻譯
- 高手幫忙翻譯下下面的文字,翻得好的會(huì)追加分?jǐn)?shù),請(qǐng)不要機(jī)翻 研究光在生物組織中的傳播特性是生物醫(yī)用光學(xué)的重要內(nèi)容。它在醫(yī)學(xué)上的應(yīng)用有重要的理論以及實(shí)際意義,既可以無損地探測(cè)組織的光學(xué)性質(zhì)參數(shù),又可以用來成像。而生物組織折射率是組織的重要光學(xué)... 高手幫忙翻譯下下面的文字,翻得好的會(huì)追加分?jǐn)?shù),請(qǐng)不要機(jī)翻 研究光在生物組織中的傳播特性是生物醫(yī)用光學(xué)的重要內(nèi)容。它在醫(yī)學(xué)上的應(yīng)用有重要的理論以及實(shí)際意義,既可以無損地探測(cè)組織的光學(xué)性質(zhì)參數(shù),又可以用來成像。而生物組織折射率是組織的重要光學(xué)特性參數(shù)之一,這一數(shù)據(jù)的精確測(cè)量與否關(guān)系到生物組織光學(xué)眾多研究的基礎(chǔ)。 本論文根據(jù)全反射原理,克服了組織的強(qiáng)散射問題,設(shè)計(jì)了一個(gè)由白光光源,光纖,透鏡,單等腰直角棱鏡,光譜儀等構(gòu)成的測(cè)量裝置,通過測(cè)量臨界狀態(tài)時(shí),白光進(jìn)入直角棱鏡的入射角A,以及棱鏡的折射率N,再由公式計(jì)算出生物組織的折射率。 該實(shí)驗(yàn)的設(shè)計(jì)是使白光經(jīng)棱鏡散射,從中選取赤綠藍(lán)三色不同波長(zhǎng)的光進(jìn)行測(cè)量。經(jīng)過試驗(yàn),所得生物組織折射率的數(shù)據(jù)資料基本與參考文獻(xiàn)相同,用結(jié)果論證了該測(cè)量方法有效可行,為進(jìn)一步完善生物組織光學(xué)的特性參數(shù)研究提供了又一方法。 展開
2009-05-18 09:34:25
628
1
- 英文翻譯
- 9.3Anti-collisionsystemsSomeanti-collisionsystemsworkusingtheprinciplesof:–sonar;–radar;–lowfrequencynear-fieldinduction.MiscellaneousSonarAlthoughtheprincipleisverygo... 9.3 Anti-collision systems Some anti-collision systems work using the principles of: – sonar; – radar; – low frequency near-field induction. Miscellaneous Sonar Although the principle is very good, there is the danger with this system that a strong wind can blow the sonar waves away. Radar Radar usually uses advanced microwave or Doppler radar technology combined with some digital signal processing. Safety circuits are builtin, and the system can sense objects up to a distance of about 40 m. The maximum crane travel speed is about 200 mmin. The radar beam which is sent out will be reflected by solid objects and will be received by the same radar antenna. It can measure the distance between two objects and also the speed with which the object is approaching the sensed object. Low-frequency near-field induction system These low frequency systems work at a frequency of approximately 90 to 220 kHz and have a working maximum range of about 30 m. A transmitter and antenna is installed on the first crane and a receiver and antenna on the adjacent crane. With this system it is possible to install three distance steps between the cranes, which should be respected. For example: – at 30 m distance an audible signal is given; – at 20 m distance the crane speed is decreased; – at 5 m distance the final stop signal is given. 不要機(jī)器翻譯,通順流暢點(diǎn) 展開
2009-10-25 14:54:56
559
6
- PCB英文翻譯
2014-04-06 14:14:38
401
2
- 植物提取物 英文翻譯
2012-06-18 04:52:57
434
5
- 英文翻譯中文
- 紡織面料是一種纖維集合體,其機(jī)械力學(xué)性能的研究一直是紡織科學(xué)界的ZD,是評(píng)價(jià)織物品質(zhì)的一個(gè)重要指標(biāo)??椢镌谑褂玫倪^程中會(huì)遇到各式各樣的破壞形式,其中拉伸,撕裂,頂破就是三... 紡織面料是一種纖維集合體,其機(jī)械力學(xué)性能的研究一直是紡織科學(xué)界的ZD,是評(píng)價(jià)織物品質(zhì)的一個(gè)重要指標(biāo)??椢镌谑褂玫倪^程中會(huì)遇到各式各樣的破壞形式,其中拉伸,撕裂,頂破就是三種常見的破壞。為了提高織物的使用壽命,所以對(duì)織物的機(jī)械力學(xué)性能的研究就很有意義了。到目前為止,國(guó)內(nèi)外已有好多學(xué)者都對(duì)此進(jìn)行過研究,包括針織物,機(jī)織物,非織造土工布等等。本論文工作的主要內(nèi)容是對(duì)十塊機(jī)織物的拉伸,撕裂,頂破性能的測(cè)試分析。通過扯邊紗法對(duì)織物的拉伸性能進(jìn)行了測(cè)試研究;采用落錘法對(duì)織物的撕裂性能進(jìn)行了測(cè)試研究,采用鋼球法對(duì)織物的頂破性能進(jìn)行了測(cè)試研究。在測(cè)試織物的拉伸,撕裂和頂破性能的同時(shí)也對(duì)織物的結(jié)構(gòu)參數(shù)進(jìn)行了測(cè)試,包括織物的厚度,織物中紗線的細(xì)度,經(jīng)緯紗密度等等。通過這些測(cè)試和對(duì)數(shù)據(jù)的具體分析,得出了織物的拉伸,撕裂,頂破三者之間的關(guān)系。 展開
2012-06-23 06:39:56
449
3
- 碟片離心機(jī)英文翻譯
- 請(qǐng)各各位大俠幫忙翻譯下。不過需要很很很專業(yè)。加分~?。?!
2009-09-28 05:02:33
669
2
- 英文翻譯,在線等!!!
- AnemailwithanAccountActivationLinkhasbeensenttotheemailaddressyou'veprovided.Ifyoucan'tfindtheemailinyourinbox,pleasecheckyour"Spam"folderassomeemailfilterswillmistakenly... An email with an Account Activation Link has been sent to the email address you've provided. If you can't find the email in your inbox, please check your "Spam" folder as some email filters will mistakenly redirect this automatically generated message to that folder. Click on the link in the email to automatically activate your account and you'll be on your way! 展開
2007-09-07 03:19:11
691
5
- 漩渦混勻器英文翻譯是什么?
漩渦混勻器英文翻譯是什么?
2020-11-02 13:42:12
556
0
- 藥學(xué)類英文翻譯?。?!急?。?!
- bicyclam coreceptors Cyclams Monocyclam pphenylenebis Bipharmacophore covalentlycoupled metalcyclams dizinc
2009-06-08 20:08:05
464
2
- 關(guān)于電磁流量計(jì)的英文翻譯
- 客戶的要求: Display must show Total + Flow Rate Set point for the quantity required for filling 還有Magnetic Flow Meter to be used on filling station of Hypo/HCL 。用于加油站?呃。。。不懂啊
2013-02-17 13:10:15
338
2
- “光電傳感器” 的英文翻譯是什么
- 光電傳感器 英文怎么說??
2007-05-31 02:26:21
709
5
- 英文翻譯——物理專業(yè)2
- 請(qǐng)幫忙翻譯這段文字QD-Protein Conjugate Preparation. Bioconjugate complexes were prepared by adding appropriate amounts of Cy3-labeled and unlabeled MBP to 100,uL of 10 mM sodium tetraborate buffer solution (pH 9). Approximately 24 pmol of D... 請(qǐng)幫忙翻譯這段文字QD-Protein Conjugate Preparation. Bioconjugate complexes were prepared by adding appropriate amounts of Cy3-labeled and unlabeled MBP to 100,uL of 10 mM sodium tetraborate buffer solution (pH 9). Approximately 24 pmol of DHLA capped QDs were added to the MBP solution and allowed to self-assemble for ~15 min at room temperature. Molar ratios of MBP-Cy3 to QDs were discretely varied among samples from 0 to 10 while the overall ratio of MBP (labeled and unlabeled) to QD was maintained at 15 (see sketch in Figure 1). The individual samples were then diluted with sodium tetraborate buffer to a total volume of 3 mL. The solutions were placed in a 10 mm optical path quartz fluorescence cuvette (FUV, Spectrocell, Oreland, PA), and the emission spectra were measured using a SPEX Fluorolog-2 fluorimeter (Jobin Yvon/SPEX, Edison, New Jersey). All samples were excited at 430 nm, which is near the minimum of the Cy3 absorption spectrum in order to reduce interference from direct excitation of the acceptor (see Figure 2). Furthermore, control spectra collected from MBP-Cy3 conjugates in the absence of QD donors were recorded and subtracted from the solution spectra to adjust for dye emission exclusively due to direct excitation. To avoid inner filtering effects, QD conjugate preparations with optical density (OD) at the excitation line below 0.05 were used in all experiments. 展開
2010-12-13 22:50:32
535
2
- 激光切割機(jī)的英文翻譯
2011-04-13 03:02:43
538
5
- 微孔板恒溫振蕩器 英文翻譯
- 解釋:微孔板為醫(yī)院檢驗(yàn)科用96孔微孔板謝謝!... 解釋:微孔板為醫(yī)院檢驗(yàn)科用96孔微孔板 謝謝! 展開
2009-02-17 15:52:45
807
2
- 振動(dòng)耐磨試驗(yàn)機(jī)英文翻譯是什么?
振動(dòng)耐磨試驗(yàn)機(jī)英文翻譯是什么?
2020-10-26 10:28:34
434
0
4月突出貢獻(xiàn)榜
推薦主頁
最新話題





參與評(píng)論
登錄后參與評(píng)論