介绍了使用DMC催化剂生产低不饱和度聚醚时存在的问题。
The problems in production of low unsaturation polyether with DMC catalyst were introduced.
阐述了有机化学中不饱和度的概念，并对其计算作了详尽的介绍。
The concept and calculation of degrees of unsaturation in organic chemistry are discussed in detail in this paper.
抗旱大豆叶线粒体膜脂的总脂肪酸不饱和度，显著低于不抗旱大豆。
The UIFA from mitochondria membrane lipid in drought resistant soybean leaf cell was lower than susceptable soybean.
讨论了聚合物多元醇和水用量、低不饱和度聚醚等因素对泡沫性能的影响。
The effects of amounts of polymer polyol and water, low unsaturated polyether polyol on properties of foam were discussed.
而膜脂脂肪酸不饱和度的增加是植物对低温生长的反应，与抗寒性无直接关系。
The increased unsaturation of membrane lipids is only the response to low temperature and has no directly relation to cold hardiness.
提出了由分子的“不饱和度”判断中心原子轨道杂化方式的方法、应用及规律。
This paper gives the method of judging the hybridization form of central atomic orbital by unsaturation, applications and its laws.
前言：本文探讨了不饱和度与官能团关系以及官能团对有机化合物合成的影响。
The essay probes into the relation between the unsaturation and the functional group as well as the influence of the functional group on the organic compound.
介绍了高分子量低不饱和度聚醚的制备方法及其在聚氨酯泡沫、弹性体中的应用。
The synthesis of high molecular weight polyether polyol as well as the applications of such polyol are introduced in the paper.
结果显示，施硅促进了小麦的生长；降低了膜脂过氧化程度，提高了叶片类脂脂肪酸的不饱和度。
Our results showed that silicon promoted the growth of wheat, alleviated peroxidation of membrane lipid, and increased unsaturation of fatty acid in the leaves.
结果表明，温度的高低，脂肪酸不饱和度，抗氧化剂和增效剂的使用，均与油脂氧化稳定性有着密切的关系。
The results showed that the oxidative stability of fats and oils were effected by the temperature, unsaturation of fatty acid, antioxidant and enhancer.
用双金属氰化物(DMC)络合催化剂可制得相对分子质量高、相对分子质量分布窄和不饱和度低的聚醚多元醇。
The polyether polyols which has higher molecular weight, narrower molecular weight distribution and lower unsaturation can be prepared by using double metal cyanide (DMC) complex catalysts.
叶绿素，可溶性蛋白，类囊体膜脂脂肪酸不饱和度和紫黄质脱环氧化酶（VDE）蛋白量在衰老过程中逐渐下降。
Besides, chlorophyll content, soluble protein, thylakoid membrane lipids fatty acid instauration and activity of Violaxanthin de-epoxidase(VDE)were all decreased with the progress of senescence.
本发明主要涉及一种用于合成高分子量低不饱和度聚醚多元醇的新型双金属氰化物催化剂(DMC)及其制备方法。
This invention relates to a new duplex metal cyanide catalyst (DMC) used in synthesizing polyether polyol with high molecular weight and low degree of unsaturation and method for making same.
实验发现，用DMC催化剂合成的聚醚与用KOH催化剂合成的聚醚相比不饱和度低，相对分子质量高，相对分子质量分布窄。
The polyether polyols prepared by these DMC catalysts are of low unsaturation, high relative molecular mass, narrow molecular distribution compared with traditional KOH catalysts.
Sunfish两亲化合物可以形成非双层结构的堆积，这与两个烷基链间的相互作用有关（这种相互作用由烷基链的长度与不饱和度决定）。
The ability of Sunfish amphiphiles to attain a nonbilayer packing is a function of the interplay between the two alkyl chains, determined by their length and presence of unsaturation(s).
从遗传学角度，这个品种牛的肉倾向于拥有明显的大理石纹理，出产的牛肉有较高的油脂分布率，其脂肪的不饱和度比世界上其他种类的牛肉都要来得高。
This breed of cow is genetically predisposed to intense marbling, and produces a higher percentage of oleaginous, unsaturated fat than any other breed of cattle known in the world.
从遗传学角度，这个品种牛的肉倾向于拥有明显的大理石纹理，出产的牛肉有较高的油脂分布率，其脂肪的不饱和度比世界上其他种类的牛肉都要来得高。
This breed of cow is genetically predisposed to intense marbling, and produces a higher percentage of oleaginous, unsaturated fat than any other breed of cattle known in the world.
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