查询词典 ethyl

The Di(2-ethyl hexyl) Adipate in Nenjiang river water was extracted by hexane with ultrasonic generator.

采用超声波提取技术，用正己烷提取嫩江水中己二酸二(2-乙基己基)酯增塑剂，以气相色谱/质谱联用选择离子监测法检测，外标法定量。

Our company treasures technical innovation and development of new products. On the basis of stable food grade,pharmagrade glycine,we have also developed compound amino acid,4pyridone,hydantoin and Nbenzylglycine ethyl ester etc.

本公司十分注重技术创新和新产品开发，在稳定食品级，医药级甘氨酸等老产品生产的基础上，又开发了蚕蛹复合氨基酸，4羟基吡啶，海因，N苄基甘氨酸乙酯等产品。

We successfully improved the methods of departing O-methyl using boron tribromide, of isolating hydrogen bromide byα-chloro-ethyl chloroformate, and of related in synthesis of natrexone, new medicine, using boron tribromide. This resulted in generation of hydrogen cyanide becoming impossible.

改进了以氯甲酸-α-氯乙酯脱代替溴化氰以及改进的三溴化硼法作为新药纳曲酮合成中相应的方法，去除了合成过程中产生氰化氢气体的可能性。

The alcohol is used as medium to generate hydrolyzate of ethyl silicate in traditional ceramicmold casting process.

传统的水解工艺是采用酒精作为中间媒介来促使硅酸乙酯与水的接触，进而发生水解反应，生产硅酸乙酯水解液。

We choose dicyandiamide and 2-ethyl-4-methyl imidazole as curing agent.

研究结果表明可以在未加表面分散剂的条件下使得粉末能均匀分散在基质中。

MethodsSaccharide content was determined by anthracene ethyl ketone method;amino acid content was estimated by indene tri-ketone colorimetric method.

方法青蒿可溶性糖含量测定使用蒽酮醋酸乙酯法，青蒿游离氨基酸含量测定用茚三酮比色法。

So an optimum reboiler initial charge exists for a column when q0.7,which was checked and proved by experiments with toluene-ethyl benzene system.

本文采用甲苯-乙苯二元物系对分批精馏过程的最佳投料量进行了实验验证，实验结果与模拟结果吻合较好。

Properties White powder, inodorous, non-toxic, soluble in dilute alkali solution, carbon disulfide, benzene, acetone, dichloromethane and a little soluble in chloroform, insoluble in alcohol, carbon tetrachloride and ethyl acetate.

性质 白色粉末。无毒、无味。溶于稀碱、二硫化碳、苯、丙酮和二氯甲烷，微溶于氯仿，难溶于乙醇、四氯化碳、醋酸乙酯。

As shown by the result, the biomass and astaxanthin content of oceanic red yeast was reduced due to the presence of β-ionone which inhibited the synthesis of carotenoids. The lethality rate of oceanic red yeast would attained 92.3% if 370 mg/L of the β-ionone concentration was contained in the plate medium. The oceanic red yeast mutated by ethyl methane sulfonate was cultured on plate medium containing 370 mg/L of the β-ionone. 200 mutants were randomly screened, positive mutants with increased the biomass, astaxanthin volumetric yield and astaxanthin specific yield accounted for 18% of the total strain, the mutants with higher biomass, astaxanthin volumetric yield and astaxanthin specific yield higher occupied 22.5%, 45% and 46%, respectively.

实验结果表明，在β-紫罗兰酮存在的情况下，由于类胡萝卜素合成受到抑制，海洋红酵母的生物量和虾青素合成量都减少；当平板培养基中β-紫罗兰酮浓度达到370 mg/L时，海洋红酵母的致死率为92.3%；在这种平板培养基上涂布经甲基磺酸乙酯诱变的海洋红酵母，随机筛选200个菌落，结果表明生物量、虾青素体积产率和细胞产率均有所提高的正突变株占18%，生物量、虾青素体积产率和细胞产率的单项指标有所提高的正突变株分别占22.5%、45%和46%。

This quality of alcohol, at least 70% ethyl alcohol, will work for this demonstration better than isopropyl alcohol, or rubbing alcohol, that you commonly find in most retail stores.

这种酒精至少含70%浓度，做出来的效果会比异丙醇或其它很容易在一般店里买到的酒精好。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。