英語學霸，幫忙啊啊啊啊

英語學霸，幫忙啊啊啊啊如圖，這道改錯題請大家?guī)兔纯?，謝謝。我要問的如圖。

2018-12-04 13:25:20 268 0

射線探傷是怎么回事啊啊啊啊??

說說這事兒的危險性。... 說說這事兒的危險性。 展開

2007-09-09 03:58:55 474 2

英語學霸幫忙，語法填空

2018-06-08 01:10:47 705 1

電解時電極材料對電解有什么影響啊啊啊啊啊，急啊啊啊啊啊

　

2014-08-06 17:49:31 442 1

為什么電腦上清 投影儀不清啊啊

有用過投影儀的嗎電腦輸出的視頻到投影儀怎么不請了，正常嗎輸出1024*7684：3的屏幕哦。... 有用過投影儀的嗎電腦輸出的視頻到投影儀怎么不請了，正常嗎 輸出 1024* 768 4：3的屏幕哦。 展開

2014-01-08 19:01:12 423 4

二氧化硫會燃燒嗎？ 啊啊啊啊啊

　

2013-10-24 08:34:13 589 3

閥門打開 水龍頭就是沒有水啊啊

總閥門水關了打開后水流就變小了，再關了閥門再開就沒有水了是所有水龍頭都沒有水可是閥門是好的，扭的動也扭的到底，而且扭的時候也有阻力。在水流中等的時候，曾經(jīng)廁所冷水方向出熱... 總閥門水關了 打開后 水流就變小了， 再關了閥門再開就沒有水了 是所有水龍頭都沒有水 可是閥門是好的，扭的動 也扭的到底，而且扭的時候也有阻力。 在水流中等的時候，曾經(jīng)廁所冷水方向出熱水，并且天然氣也打開了。 求解求解 現(xiàn)在停水啊啊啊 小區(qū)都沒有停水。 展開

2013-03-09 14:29:03 822 3

誰來幫我PS一下這幾張圖啊??！

我們學校要舉行文藝表演了，我們呢就有一個小品。這次的活動涉及到宣傳和質(zhì)量。我覺得要靠實力我們肯定能贏，但在宣傳方面就差多了。我聽說芋頭的PS圖片特別棒，就想請你們幫幫忙，幫我PS這幾幅圖好不好？ http://hiphotos.baidu.com/%C3%CE%D1%A9%B3%BF%C7%E... 我們學校要舉行文藝表演了，我們呢就有一個小品。這次的活動涉及到宣傳和質(zhì)量。我覺得要靠實力我們肯定能贏，但在宣傳方面就差多了。我聽說芋頭的PS圖片特別棒，就想請你們幫幫忙，幫我PS這幾幅圖好不好？ http://hiphotos.baidu.com/%C3%CE%D1%A9%B3%BF%C7%E9/pic/item/b75ac14475e8468cb3b7dc16.jpg http://hiphotos.baidu.com/%C3%CE%D1%A9%B3%BF%C7%E9/pic/item/f7ad005999f3cb242934f010.jpg http://hiphotos.baidu.com/%C3%CE%D1%A9%B3%BF%C7%E9/pic/item/9296f31361a1d58e6438db11.jpg 盡量給人一種舒適的感覺！ 展開

2007-12-28 09:45:49 372 6

火山打字怎么打.有什么技巧么.啊啊

　

2018-11-10 19:58:46 334 0

恒光智能康復儀算是什么ZL法，安全不啊啊?

　

2012-12-09 04:34:58 352 1

幫忙翻譯成英語

1.掌握量熱裝置的基本組合及電熱補償法測定熱效應的基本原理2.用電熱補償法測定KNO3或KCL在不同濃度水溶液中的積分溶解熱3.用作圖法求KNO3或KCL在水中的微分沖淡，積分沖淡熱和微分溶... 1.掌握量熱裝置的基本組合及電熱補償法測定熱效應的基本原理 2.用電熱補償法測定KNO3或KCL在不同濃度水溶液中的積分溶解熱 3.用作圖法求KNO3或KCL在水中的微分沖淡，積分沖淡熱和微分溶解熱 還有：1。測定蔗糖轉(zhuǎn)化的反應速率常數(shù)和半衰期 2.掌握旋光儀的使用方法 不要用翻譯網(wǎng)站翻啊······麻煩各位了 展開

2008-03-29 00:43:16 387 1

幫忙翻譯一段英語

Plant material and culture conditions have been described (7). Briefly， a diploid tissue culture line， WOO1C， of wild carrot， Daucus carota L.， was maintained in Murashige and Skoog medium supplemented with 0.1 mg of 2，4-dichlorophenoxy... Plant material and culture conditions have been described (7). Briefly， a diploid tissue culture line， WOO1C， of wild carrot， Daucus carota L.， was maintained in Murashige and Skoog medium supplemented with 0.1 mg of 2，4-dichlorophenoxyacetic acid (2，4-D). To regenerate plants from the culture， callus tissue was transferred to the same medium devoid of 2，4-D (embryogenic medium). All experiments were performed with cultures grown in liquid medium. For convenience， cultures grown in 2，4-D-containing medium are referred to as "callus cultures"， and those grown in medium without 2，4-D as "embryo cultures." The growth of callus cultures was measured by the sidearmturbidity method (7). The number of cells at any time point of growth was estimated from turbidity in a Klett-Summerson calorimeter and was expressed in arbitrary units. For example， Klett 100 corresponds to ="2 X 106 cells per ml. The relationship is linear up to Klett 150 in our Klett-Summerson colorimeter. Suspension cultures ofWOOLC cell line are normally maintained at cell densities between 106 and 107 cells per ml in 0.1 mg of 2，4-D per liter (high-density culture) in shake flasks. During a quantitative study on embryogenesis， we found that maximal embryo production can be achieved by first incubating the culture at high density in medium without 2，4-D for one generation time and then diluting it to 2-3 x 104 cells per ml (low-density culture). To compare cultures of comparable density， callus cultures and embryo cultures were subjected to the same procedure. To initiate low-density embryo or callus cultures， an 8-day-old high-density culture grown at the logarithmic phase was washed three times with fresh callus or embryogenic medium and resuspended at 8 x 105 cells per ml for one generation (3 days) in its corresponding medium. It was then diluted to 2 x 104 cells per ml; 20 ml of the culture was incubated in a plastic Petri dish (9 cm in diameter) at 240C. The morphogenetic events of the cultures were examined and photographed under a dissecting microscope. 請不要用google的那個，我看不懂~~ 展開

2008-02-19 03:32:04 531 2

哪位學霸給我講解講解化學方程式

　

2017-12-31 02:51:54 354 1

打火機燒了塑料的膠管子融化了弄到了衣服上 怎么去除啊啊

同學今天玩打火機然后把水彩筆芯燒了粘在我衣服上了洗都洗不掉就是那種很軟的膠管子塑料的跟吸管一樣的材質(zhì)怎么才能洗掉啊求你們解答啊啊啊... 同學今天玩打火機 然后把水彩筆芯燒了粘在我衣服上了 洗都洗不掉 就是那種很軟的膠管子 塑料的 跟吸管一樣的材質(zhì) 怎么才能洗掉啊 求你們解答啊啊啊 展開

2012-11-28 03:08:30 854 3

求助：幫忙幫忙，機械英語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 12:36:26 467 0

學英語出來干什么呀？

　

2005-08-28 03:19:22 348 6

第四題求解 要分析謝謝學霸

2015-12-11 03:46:31 507 3

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 10:19:02 583 2

醫(yī)學影像學專業(yè)但英語不好 能學嗎

　

2016-06-25 19:43:17 430 1