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The maximum coupling efficiency of the star styrene-butadiene rubber was 85.93%, obtained when the molar ratio of tin tetrachloride and active chains was 0.2625, tin tetrachloride was added in two portions and with the terminal styrene moiety exchanged for butadiene.

结果表明，四氯化锡的用量和加入方式以及端基转换均对偶联效率有影响，四氯化锡与活性分子链的物质的量比为0.2625，且在转换端基的条件下分2次加入时，所得星型丁苯橡胶的偶联效率最高为85.93%。

In order to perform this function, the oligosaccharide moiety of glycoproteins must have the potential to exist in a large variety of forms.

为了行使其功能，糖蛋白的寡糖部分必须要能以很多的种类存在。

UVB was different form UVA in that the former damaged the deoxyribose moiety faster.

UVB对脱氧核糖的损伤与UVA稍有不同，UVB比UVA的损伤速度要快。

Thus, the "yellow enzyme" is isolated as a conjugated protein in which the non-amino acid moiety is riboflavin phosphate, while catalase is an iron-porphyrin-containing protein

比如说，分离出来的结合蛋白-&黄酶&便是一例，它的非氨基酸部分是磷酸核黄素。而过氧化氢酶则是一种含卟啉铁的蛋白。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。