Glycolipids (glycosyldiacylglycerols) are diacylglycerols with a sugar attached to the unesterified hydroxyl group.

糖物质是由甘油二和糖结合未的羟基形成的。

This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.

本文综述了光气下游精细学品的开发及生产进展,包括二苯甲酮、氯代甲、异氰酸、酰氯、碳酸合物。

Dimethyl phenylethyl carbinyl acetate (DPCA ) was synthesized by using a new catalyst. This technology decreases the pollution and can also be used in synthesis of other carbinyl acetates perfume.

用一种新型合成乙酸二甲基苯乙基原(DPCA),并简了合成工艺,少了生产过程中产生的三废,因而投入生产已具备了必要条件。这种新型可用于其它原香料的合成。

This work applied the new type capillary column modified by barium sulfate. It has completed the solubilty of high boiling ester in para-methyl-toluate with the method of chromatography.

研究了硫酸钡微晶改性新型毛细管柱的应用.可用于色谱法测定完全互熔性高沸点在对甲基苯甲酸甲中的溶解度.

The result indicates that the main metabolic product of petroleum hydrocarbon degradation is acetic acid and surface active agent of glycolipid composed of fatty acid and rhamnose.

实验表明,微生物降解原油代谢产物主要是乙酸和以棕榈酸为主的脂肪酸与鼠李糖形成的糖表面活性。

Finally, we gained four esterifiable quinolone analogues (compounds 22 to 25) by modifying the structures of compound 3, 14 and 16 on 3 position.

同时利用所合成的合物3，14，16为模板，对它们的3位羧基进行了反应合成了4个喹诺酮合物：合物22—25。

At the same time, some other oxycompound groups, such as carbonyl group, aldehyde group and ketone group, appear or increase with temperature rising.

与此同时，醛、酮、羰基、芳香酮、醛羰基等含氧基团或者从无到有，或者官能团数量不断增加。

The results showed that the main compound categories of aromatic components were alcohols, esters, terpenes and ketones for all half-highbush blueberry cultivars.

结果表明，半高丛越橘以醇、、萜和酮物质为主。

Atropine is a specific antidote for the cardiovascular collapse that may result from the injudicious administration of a choline ester.

阿托品是治疗由于用胆碱不慎而引起的心血管性虚脱的特效解毒。

The cold-fust of the plasticzing agent that use it as material is better than the ester of Butanone and Octanol.

以它为原料的增塑耐寒性优于丁醇和辛醇的。