查询词典 ethyl

Any of several esters, other than the ethyl ester, of carbamic acid .

乙硫磷一种剧毒的液态有机磷酸酯杀虫剂，分子式为

Wedgeplug O-Seal plug valves with their positive, no-leak features are not only recommended as the best general purpose valves for handling hydrocarbons, vegetable oils, solvents, etc., but are ideal for such tough service as butane, propane, butadiene, acetone, ethyl alcohol, ammonia, anhydrous ammonia, benzene, vinyl chloride, dry chlorine, Dowtherm, ethane, ethylene, hydrogen chloride, napthalene, oxygen, hydrogen, phthalic anhydride, dry phosgene, phosphoric acid, potassium carbonate, styrene, molten sulphur, sulphur dichloride and related services within a temperature range from -300oF to + 450oF within pressure limits of the valves.

楔塞O形密封旋塞阀具有积极的、无泄漏特性，不但是最好的通用的阀门，用于处理碳化氢，植物油，溶剂等，还特别适用于严酷的应用环境，如丁烷，丙烷，丁二烯，丙酮，乙醇，氨，无水氨，苯，氯乙烯，干氯，道氏热载体，乙烷，乙烯，氯化氢，萘，氧，氢，邻苯二甲酸酐，干碳酰氯，磷酸，碳酸钾，苯乙烯，融化硫，二氯化硫，以及温度在-184oC至232oC之间，压力在阀门额定压力等级范围内的有关应用。

Chloroacetic acid,chloromethyl ether,acetone,mphenylenediamine,butyl acetate,ethyl acetate,methylene chloride,ethylene dichloride,dioxane.

氯乙酸，氯甲醚，丙酮，间苯二胺，醋酸丁酯，醋酸乙酯，二氯甲烷，二氯乙烷，二氧六环。

According to the results of the former study in our laboratory, trans-1, 2-cyclohexanediol is produced with a lot of acids and water, for extraction of trans-1, 2-cyclohexanediol from the solution, ethyl acetate and butyl acetate were used as extraction reagents, the solubility data of the trans-1, 2-cyclohexanediol in corresponding mixed solvents of some sorts of acetates and water are needed.

根据本实验室前期研究结果可知，反式-1，2-环己二醇是在酸性和大量水存在的条件下得到的，为了把反式-1，2-环己二醇从反应液中萃取出来，本工艺所采用的萃取剂是乙酸乙酯和乙酸丁酯，需要获得反式-1，2-环己二醇在这些酯类与水混合溶剂中的溶解度数据，因而对反式-1，2-环己二醇进行相关固液相平衡的研究是非常迫切和必要的。

To water soluble adsorbates their adsorption based on hydrogen bonding is lowest from water, moderate from ethanol and highest from ethyl acetate.

对于水溶性物质，在水中氢键吸附的效果最差，在乙醇和乙酸乙脂中依次提高。

When 3-benzoyl-5-formyl-indolizine or ethyl 5-benzoyl-indolizine-3-carboxylatewere used as substrates, a novel coupling reaction occurred, givinghydroxy-cycl[3,2,2]azines. A mechanism of the reaction was proposed.

其中3-苯甲酰基-5-甲酰基中氮茚和5-苯甲酰基-3-中氮茚甲酸乙酯在低价钛试剂的作用下，发生了新奇的偶联反应，得到了用其它方法难以制备的Hydroxy-cycl[3，2，2]azine，并对此现象作了解释。

Objective: To investigate the feasibility of the synthesis of Ethyl-p-Nitrobenzoate catalysed by Hydrogen Peroxide. We study the effects of the actor mole ratio, catalyst dosage, reaction temperature, and reation time on the esterification rate.

目的：探讨双氧水催化合成对硝基苯甲酸乙酯的可行性，并考察了反应物的摩尔比、催化剂用量、反应温度及反应时间对产物收率的影响。

The influences of the dosage of Na2S, pH values,sulfidization time and the types of pH modifiers on the flotation of cerusite and limonite have been studied in this paper,and the performance of ethyl xanthate,butyl xanthate,isobutyl xanthate,amyl xanthate and isoamyl xanthate are studied in detail respectively.

详细研究了硫化钠用量、矿浆pH值、硫化时间以及pH调整剂种类对白铅矿和褐铁矿浮选的影响，重点考察了乙基黄药、丁基黄药、异丁基黄药、戊基黄药和异戊基黄药五种黄药的捕收性能。

The concents of testosterone and NO of the mouses gavaged with high dosages of Chinese chive extractiong were not significantly more than that of giving middle dosages.This indicated that Chinese chives might be more safe than traditional chinese herbals of sexual improvement function.2、The screening of sexual improvement function chemical substances of Chinese chivesThe crude extract was leached to four phases by petroleum ether, ethyl acetate,n-butanol and water.By doing animal tests to detect the contents of testosterone and NO in serum of mices,the result was showed that the extracts of petroleum ether and n-butanol have sexual improvement function,especial the n-butanol phase.

从小鼠灌喂不同剂量的韭菜提取液试验结果来(来源：ABCa539a5论文网www.abclunwen.com)看，灌胃高剂量的小鼠的睾酮含量和NO含量相对于中剂量来说并不上升，而是保持稳定，因为睾酮含量和NO含量过度上升可能会带来付作用，所以由此可以说明其食用安全性高，副作用小。2、韭菜改善性功能物质的筛选将韭菜粗提物依次通过不同溶剂萃取，分成石油醚、乙酸乙酯、正丁醇和水四个萃取相，通过小鼠灌胃的动物试验，以小鼠血液NO含量和睾酮含量为指标，发现正丁醇和石油醚萃取相中的物质有改善性功能的效果，尤其是正丁醇相效果非常显著。

Producing Creatin monohydrate, Ctreatine anhydrous, Taurine, Tri-Craetine citrate, Tricreatine Malate, Creatine Ethyl ester Glycocyamine, Guanidino propionic acid, etc.

生产一水肌酸，无水肌酸，肌酸乙酯，牛磺酸，三肌酸苹果酸，三肌酸柠檬酸，胍基乙酸，胍基丙酸，肌氨酸钠，面粉增白剂等食品添加剂等。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。