查询词典 ethyl

"Other important glycols include 1,3-butanediol and 1,4-butanediol, used as raw materials for plastics and other chemicals; 2-ethyl-1,3-hexanediol, an insect repellent; and 2-methyl-2-propyl-1,3-propanediol, the raw material of the tranquilizer meprobamate"

&其它重要甘醇有︰1，3丁二醇和1，4丁二醇，用于制取作增塑剂和其它化妆品；2－乙基－1，3－己二醇，一种有效的驱虫剂；2－甲基－2－正丙基－1，3－丙二醇，用于制取广泛使用的镇静剂眠尔通。&

A novel anionic gemini surfactant,didodecyl-ethoxylate bis-sodium sulfate was prepared in three steps using lauryl alcohol,glycol-epiglyceride and chlorosulfonic acid as raw materials and BF_3-ethyl ether as catalyst.The chemical structure of the product was confirmed by IR spectrum.

以十二醇、乙二醇二环氧甘油醚和氯磺酸为原料，以BF3-乙醚为催化剂，通过三步法制备阴离子型双子表面活性剂双十二烷基乙氧基二硫酸酯钠；红外光谱对其结构进行了表征，测定了其表面活性和发泡力等性能。

The optimal DA-6 concentration is from 10 to 15 mg·kg~(-1). hexanoic acid 2-ethyl ester ; synthesis ; application

为了促进DA 6的推广应用，作者对它的合成进行了研究，找到了一条合理的、科学的DA 6的生产工艺路线，并进行了田间药效试验，取得了良好的效果。1 材料和

Potassium dihydrogen phosphate was used as catalyst in the synthesis of hexanoic acid 2-ethyl ester.

用磷酸二氢钾作催化剂，己酸与二乙氨基乙醇为原料，合成DA-6。

This paper presents a description of the brief synthesis of hexanoic acid 2-ethyl ester by new methods and its application. It takes two steps and 4.5 h to complete the synthesis of it.

己酸二乙氨基乙醇酯(DA 6)由美国科学家于20世纪90年代初首先发现的一种新型植物生长调节剂，具有高活性，低毒无污染、可与其它农化物质兼容的特点，它的合成与应用研究正日益受到人们的重视[1～7]。

M ethyl hexanoic acid fruity/cheese,sour,fruity,oil-nutty taste

2-甲基己酸水果/乾，酸臭的，果香，油-坚果味

M ethyl hexanoic acid fruity/cheese,sour,fruity,oil-nutty taste

2-甲基己酸水果/干酪，酸臭的，果香，油-坚果味

Granulated sugar does not dissolve easily in cold drinks or ethyl alcohol .

砂糖不容易溶于冷饮或酒精。

Group A = atmospheres containing acetylene; Group B = atmospheres containing hydrogen; Group C = atmosphere containing ethyl-ether vapors, ethylene, or cyclopropane; Group D = atmospheres containing gasoline, hexane, naphtha, benzene, butane, propane, alcohol, acetone, benzol, lacquer, solvent vapors or natural gas.

组A =大气中含有乙炔；组B =大气中含有氢；组C =大气中含有乙醚蒸汽，乙烯，或环丙烷；组D =大气中含有汽油，乙烷，石脑油，苯，丁烷，丙烷，酒精，丙酮，不纯苯，漆，溶剂蒸汽，或天然气。

The measurement of ethyl carbamate content in grape wine by liquid-liquid extraction combined with GC/MS internal standard method had been developed.

建立了液/液萃取结合GC/MS内标法测定葡萄酒中氨基甲酸乙酯含量的方法。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新