异构体

It can be concluded that KOH can be served as dehydrating reagent in replacement of DBU.

研究了CLA以及各种异构体在空气中的氧化稳定性以及用不同抗氧化剂保护的效果。

In even more preferred embodiments, the amount of the preferred stereoisomer is at least 95%, even more preferably at least about 97% of the total amount of phenylseleno blocked lactone produced.

在更优选实施方案中，优选异构体的量至少为生成的含有苯硒基的保护内酯总量的95％、甚至更优选为约97％。

In certain preferred embodiments, the preferred phenylseleno blocked lactone is obtained in an amount representing approximately 90% or more of the total amount of the stereoisomers obtained.

在某些优选实施方案中，优选得到的含有苯硒基的保护内酯的量大约为所得到的异构体总量的90％或更多。

A solution of one stereoisomer of a given monosaccharide rotates plane-polarized light to the left and is called the levorotatory isomer, designated

一特定单糖的一种立体异构体溶液使平面偏振光向左旋转称为左旋，标记为

Clausenamide is a compound isolated from clausena lansium Skeels, and has been synthesized and resoluted into levorotatory and dextorotatory clausenamide by our chemists.

黄皮酰胺是从芸香料黄皮属植物黄皮叶中分离出的化合物，我所合成室已完成它的全合成并应用拆分技术分离出它的对映异构体。

A solution of one stereoisomer of a given monosaccharide rotates plane- polarize d light to the left and is called the levorotatory isomer, designated

一特定单糖的一种立体异构体溶液使平面偏振光向左旋转称为左旋，标记为

Those that rotate light in the opposite direction are called levorotatory or optical isomers. The symbols d- and l-, formerly used to indicate dextro- and levorotatory isomers, are no longer sanctioned owing to confusion with D- and L-, which refer to configuration relative to D-glyceraldehyde.

其符号d-和 l-，原先是用来表示右旋的和左旋的异构体，现在由于容易与D-和L-混淆而不再使用，这两个符号涉及与D-甘油醛相关的结构）。

Since the days of Louis Pasteur, scientists have known that amino acids, the building blocks of proteins, come in two varieties.

自从Louis Pasteur的时代开始，科学家已经认识氨基酸，这些构成蛋白质的基本分子有两种异构体。

The differences of different molecules in magnetic susceptibility, magnetic permeability and magnetic hysteresis are used as basic principles of qualitative analysis.

介绍一种磁化率定性分析装置，该装置可直接定性分析单组分大分子和同分异构体样品。

Any of various liquid isomers, C10H22, of the methane series.

癸烷甲烷系的任何一种液体异构体，c10h22

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐