英语词汇steric hindrance effect怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

网络释义

1
[化学]?位阻效应
位阻效应(steric hindrance effect) 指取代的大小、数量、位置对单体共聚的影响氟取代单体无位阻效应; C 2 F 4 和C 2 ClF 3 易均和共聚一取代单体不显示位阻效...

双语例句

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The dispersing ability of SSHE as cement dispersant also came from steric hindrance effect and long side chain contributed to steric hindrance in a certain degree.
淀粉丁二酸单酯用作水泥分散剂时，其分散机理也主要来自空间位阻作用，且较长的极性侧链对空间位阻效应具有一定的贡献。
2
At the same time, we have also investigated the influence of the electric effect and steric hindrance effect of the substituents to the yields and regioselectivity.
同时，我们还研究了取代基团的电子效应和位阻效应对反应产率和区域选择性的影响。
3
The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination.
分子量降低和消旋作用对温度的依赖性，是由于分子运动和笼罩效应以及重合的空间位阻效应所致。

单词	steric hindrance effect
释义	steric hindrance effect 简明释义空间位阻效应：一种分子中由于原子或基团的空间排斥作用而导致反应速率降低或化学性质改变的现象。网络释义 1 [化学]?位阻效应位阻效应(steric hindrance effect) 指取代的大小、数量、位置对单体共聚的影响氟取代单体无位阻效应; C 2 F 4 和C 2 ClF 3 易均和共聚一取代单体不显示位阻效... 双语例句 1 The dispersing ability of SSHE as cement dispersant also came from steric hindrance effect and long side chain contributed to steric hindrance in a certain degree. 淀粉丁二酸单酯用作水泥分散剂时，其分散机理也主要来自空间位阻作用，且较长的极性侧链对空间位阻效应具有一定的贡献。 2 At the same time, we have also investigated the influence of the electric effect and steric hindrance effect of the substituents to the yields and regioselectivity. 同时，我们还研究了取代基团的电子效应和位阻效应对反应产率和区域选择性的影响。 3 The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination. 分子量降低和消旋作用对温度的依赖性，是由于分子运动和笼罩效应以及重合的空间位阻效应所致。
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