ester
['estə]
n.酯
例句与用法:
A natural or synthetic ester of glycerol and fatty acids.
甘油酯以甘油和脂肪酸天然存在的或合成的酯
A salt or an ester of boric acid.
硼酸盐一种硼酸盐或硼酸酯
n.
【化】酯
ester
ester['estə]n.1.■【化学】酯
esterester[ˈestə]n.1.■【化】酯ester value酯化值
[ˈɛstə]
noun
- (Chemistry)an organic compound made by replacing the hydrogen of an acid by an alkyl or other organic group. Many naturally occurring fats and essential oils are esters of fatty acids
(化)酯
esterify
[ɛˈstɛrɪfʌɪ]
( -ies, -ied)
verb(-ies, -ied)
语源
- mid 19th cent.: from German, probably from a blend of Essig 'vinegar' and Ather 'ether'
ester
名词 ester:
formed by reaction between an acid and an alcohol with elimination of water
ester
■The borate ester coupling agent is better than others.
3种改性剂中硼酸酯偶联剂作用最明显。
■L-Alanine tert-butyl ester hydrochloride.Formula: C7H15NO2.
L-Alanine tert-butyl ester hydrochloride分 子 式:C7H15NO2.
■The hydroxyl and carboxyl,belonging to auxochromic groups,were oxidized into the carbonyl and ester groups.
[方法]通过对刺槐木材变色前后丙酮抽出物的定性分析,得出变色前后丙酮抽出物的主要成分,进行对比分析,初步得出抽出物对诱发变色的作用。
■A salt or ester of fumaric acid.
一种延胡索酸盐
■A salt or ester of acetic acid of cellulose made into a synthetic filament, yarn, or fabric.
一种醋酸盐或醋酸纤维素制成的一种人工细丝,纱线或者织物。
■A salt or an ester of malic acid.
一苹果酸的盐或酯
■A salt or ester of butyric acid.
丁酸盐丁酸的盐或酯
■Hilton Shanghai is pleased to announce the appointment of Ms. Ester Zheng as Director of Human Resources.
上海希尔顿酒店荣幸地宣布郑旭辉女士新近被聘任为人力资源部总监。
■The numbers of ester and its content in various kinds of Chinese date are different.
不同品种的红枣中所含酯类的多少及含量的高低均有所差异。
■It can be compatible with chlorinated rubber, epoxy, epoxy-tar, tar, epoxy ester, phenol, alkyd paint systems.
与氯化橡胶、环氧、环氧沥青、沥青系、环氧酯、酚醛、醇酸等体系的涂料配套使用。
■Methacrylic acid isobutyl ester...
丙酯 英文名: Isobutyl methacrylate;
■A salt or an ester of propionic acid.
丙酸盐丙酸的一种盐或脂
■The major aromas were hexylic acid ethyl ester, benzyl ethanol, octylic acid and octylic acid ethyl ester.
主体风味成分是己酸乙酯、苯乙醇、辛酸和辛酸乙酯。
■GREEN propyl lactate is a propyl ester of natural lactic acid , which is produced by fermentation from sugar .
乐林乳酸丙酯是以蔗糖发酵生产的天然乳酸制成的。
■GREEN ML is the methyl ester of natural lactic acid ,produced by fermentation from sugar .
乐林乳酸钾酯由天然发酵乳酸精制而成,为无色透明液体 。
■The Summary of Vinyl Ester in Anti-corrosion Engineering Application.
乙烯基树脂在氟化铝防腐蚀工程中的应用。
■Acetic acid, 1-methylethyl ester;1-methylethyl acetat ... acetic acid, isopropyl ester;isopropile (acetato di) ...
乙酸异丙酯;醋酸异丙酯;乙酸-1-甲基乙基酯香港
■Acetic acid methyl amyl ester.
乙酸甲基戊酯。
■A salt or ester of acetic acid.
乙酸盐,乙酸酯
■They are also used as the material of ether and ester surfactant.
也用作醚型,酯型表面活性剂的原料。
■A salt or an ester of lactic acid.
乳酸盐或乳酸酯
■Sulfonated fatty acid methyl ester surfactant is purified by two-step solvent crystallization.
二步溶剂结晶法纯化了脂肪酸甲酯磺酸钠盐表面活性剂。
■Dimethyl cyanimino dithiocarbonate;Cyanoimino dithioc ... dimethyl ester; cyano-carbonimidodithioic acid dimethyl ...
二甲基氰基亚氨基二硫代碳酸酯;氰亚氨基二...香港
■The univalent radical NO2 or a compound containing it, such as a salt or an ester of nitrous acid.
亚硝酸根,亚硝酸盐或酯以一价的根NO2为特征或含有此根的化合物,如亚硝酸盐或酯
■The separation process was introduced for separating qualified ethyl acetate from waste ester solution.
介绍了以废酯液为原料分离生产醋酸乙酯的工艺过程。
■Antirust coating with good properties has been prepared with acrylic ester modified petroleum resin by grafting.
介绍了用丙烯酸酯对石油树脂进行接枝改性制成的防锈漆。
■Introduce the advance in the research of caffeic acid phenethyl ester (CAPE) in recent years.
介绍蜂胶中咖啡酸苯乙酯(CAPE)的最近研究进展;
■The cold-fust of the plasticzing agent that use it as material is better than the ester of Butanone and Octanol.
以它为原料的增塑剂耐寒性优于丁醇和辛醇的酯类。
■The toxicity effect of 6 carbamic ester pesticides on Anabaena flos-aquae was studied.
以水华鱼腥藻为材料研究了6种氨基甲酸酯类农药对藻类的毒性效应。
■Meanwhile,ester extracts and n-butyl alcohol extracts were compared and the latt...
以水饱和正丁醇为萃取溶剂为佳,萃取率为70%以上,含量为5.6%。
■Ester is a truly unforgettable person.
伊斯特真是一个令人难忘的人。
■The traditional ester bean curd, whose nutrient is simple, is too soft to cook.
传统内酯豆腐营养成分单一,质地柔软易碎,不易烹制。
■The carbonyl groups ofketone、aldehyde and ester were generated during photooxidation. 3.
光氧化反应使得试样中有酮、醛、酯等多种类型的羰基生成。
■Title: Separation of racemic naproxen ester on cellulose-based(TA)chiral stationary phase.
关键词:纤维素三醋酸酯;手性固定相;手性拆分;萘普生
■Its addition was optimized as 0.6% phosphate caseinate, 0.3% sugar ester, 0.2% CMC.
其最佳添量为磷酸化酪朊酸钠0.6%,蔗糖酯0.3%,海藻酸纳0.2%。
■The kinetics of neat cyanate ester and its modified resin systems were investigated by FTIR.
利用傅立叶变换红外光谱对纯氰酸酯及其改性树脂体系进行固化反应动力学的研究。
■Main products of the company are: Fumaric acid, titanium acid four different propyl ester.
南京华邦化工有限公司,主要产品有反丁烯二酸(即富马酸)、钛酸四异丙酯。
■The force that press a gram changes formal name to call methylic acrylic acid armour ester, namely " organic glass " .
压克力化学名称甲基丙烯酸甲酯,即“有机玻璃”。
■On the rigid surfaces of non-ferrous metal as finish, concrete, asbestos-cement board, plank, polymeric ester etc.
可作为饰面涂料涂装在非铁金属、混凝土、水泥石棉板、木板、聚酯及其他刚性表面。
■On the rigid surfaces of non-ferrous metal, concrete, asbestos-cement board, plank, polymeric ester.
可涂装在非铁金属,混凝土、水泥石棉板、木板、聚酯及其他钢性表面。
■A salt or ester of folic acid.
叶酸一种盐或叶酸酯
■At the same time,the development tendency and the application prospect of cyanate ester resins were also discussed.
同时,还讨论了改性氰酸酯树脂的发展方向及应用前景。
■At the same time, the development tendency and the application prospect of cyanate ester resins are also discussed.
同时,本文还讨论了改性氰酯酯树脂的发展方向及应用前景。
■Sell christmas balls ester eggs and all kind acryl.
圣诞舞会卖鸡蛋和各种丙烯酯.
■Under these conditions, the yield of the ester was over 93%.
在此条件下,酯收率可超过93%。
■In 1 of glycerine element, 2 locally, be two ester change fat sick at heart below most circumstance.
在甘油分子的1,2位置上,在多数情况下是两个酯化脂酸。
■In no-choice test, the sequences of antifeedant effect were aether>alcohol>petroleum ester >chloroform extracts.
在非选择性条件时 ,乙醚提取物的拒食作用最强 ,其次分别为乙醇和石油醚提取物 ,氯仿提取物的拒食作用最低。
■Ester asked for time to think all this over .
埃斯特拉要求给她时间好好想一想。
■Separation of racemic naproxen ester on cellulose-based(CTA) chiral stationary phase.
外消旋萘普生酯在纤维素衍生物手性固定相上的分离
■A salt or ester of aspartic acid.
天门冬胺酸盐,天门冬胺酸酯一种天门冬胺酸盐或脂