Esters的例句大全

Biodiesel is a typical environmental friendly fuel . The essential components of biodiesel are acid methyl esters ( FAME ) .

生物柴油是典型的绿色能源, 主要成分是脂肪酸甲 酯.

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High fatty acid contents raw acids can raise the pour points of the esters remarkably.

石油酸中脂肪酸含量的增加,将显著升高石油酸酯的倾点.

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Esters in aromatherapy bath body product works as a fungicide and a sedative.

香薰浴体酯厂产品作为一种杀菌剂和镇静.

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Esters are the major components , the other chemical constituents were alkane, acids, alcohol, aldehyde and ketone.

主要成分为酯类化合物,同时鉴定出烷烃类 、 酸 、 醇 、 醛、酮类化合物.

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Several phenylselenyl esters were selected as precursors of acyl radicals and synthesised by our established method.

选择数种苯硒酯作为产生酰基自由基的母体,并按照作者已建立的方法合成.

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The hydroxyl groups can be changed into esters , ethers , acetals and ketals, etc.

最常用的羟基保护基可归纳为三类:酯类 、 醚类和缩醛或缩酮类.

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Any of three isomeric glyceryl esters of butyric acid , naturally present in butter.

丁酸的三种同分异构甘油酯的任一种.

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Syntheses of cinnamic esters catalyzed by solid acids such as sulphate and ion-exchanged resin were surveyed.

比较以硫酸盐和阳离子交换树脂分别为催化剂合成肉桂酸酯.

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The microwave assisted synthesis and the application on packaging materials of cinnamic esters were discussed.

综述了肉桂酸酯的传统合成法与微波合成法的特点及技术进展.

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Carboxylic acid esters are important chemical raw materials.

羧酸酯是重要的化工原料.

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A gas chromatographic method is described for determining benzene carboxy-lic acids and esters.

讨论了苯羧酸及苯羧酸酯混合物的气相色谱分析方法.

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Asmaterials for the production of cosmetics, polyglycerol esters may use as emulsion , excipient, wetting agent , softener.

介绍了各种类型聚甘油的生产 、 聚甘油的性质及聚甘油酯类在化妆品中的应用.

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In this study , lutein esters were prepared from marigold flower and then mixed with dietary oil.

叶黄素的制备原料为万寿菊的花, 并以叶黄素酯的形式存在.

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The process of preparing monoglycerides by alcoholysis of fatty acid methyl esters was investigated.

考察了脂肪酸甲酯醇解法制备单甘酯.

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Preparation and anticholinergic effects of the quaternary salts derived from scopolamine esters

东莨菪碱酯季铵化合物的制备及其抗胆碱能作用

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Synthetic esters were tested as oiliness additives and were compared with palm oil.

采用合成酯作为油性剂,与棕榈油进行了一系列的对比试验.

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The stereoselective hydrolysis of racemic glycidyl esters catalyzed by lipase in a biphasic system was studied.

利用脂肪酶作为催化剂在双液相反应体系中对外消旋缩水甘油酯进行立体选择性的酯水解反应.

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Limitedly resistant to vegetable oil and strong solvents , such as ketones and esters.

但不耐无机酸 、 碱及强氧化物溶液.

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Such esters, or mixtures thereof may also be modified by as nitrobenzene, nitrotoluene, dinitrotoluene or trinitrololuene.

这种酯或其混合物,也可由硝基苯, 硝基甲苯, 二硝基甲苯或三硝基苯等附加物来改性.

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Monoglycerides, sugar esters, polyglyceryl fatty esters and long chain fatty wax esters are important biosurfactants.

脂肪酸单甘油酯 、 脂肪酸糖酯 、 甘油脂肪酸酯和长链脂肪酸蜡酯是重要的生物表面活性剂.

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