最后，本文讨论了空间位阻效应对反应性质的影响。
In the end, the steric hindrance of the acetyl group was discussed.
然而，有关的PS和EVA取代基的空间位阻效应取消此催化行为。
However, the steric effects related to the substituents of PS and EVA cancels this catalytic behaviour.
依据柠檬酸的螯合作用和乙二醇的空间位阻效应，获得了稀土混合物囊泡。
According to the chelation of citric acid and the sterically hindered effect of glycol, the vesicle of rare earth mixture can been obtained.
由于空间位阻效应，长链脂肪醇与短链脂肪醇可能存在不同的毒性作用机理。
Due to the steric effect, there may be different toxicity mechanisms between long-chain and short-chain aliphatic alcohols.
CE10P的空间位阻效应和疏水性保护交联的化学键减少水解、改善耐化学 品性；
The steric influence and hydrophobicity of CE10P protect the cross-link from hydrolysis and lead to improve chemical resistance;
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。
The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination.
表面活性剂PEG（600+20000）是利用胶粒的静电效应和对胶粒的空间位阻效应分散胶粒；
Surfactant PEG (600+20000) dispersed agglomeration colloids by electrostatic effect and space location-obstruct effect.
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。
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.
研究表明水杨醛亚胺镍配合物中苯环上取代基的电子效应和空间位阻对乙烯聚合活性和聚合物的分子量有所影响。
With increasing the electron withdrawing substituents in the phenoxy ring, the catalytic activity was increased, and the molecular weight of polyethylene decreased.
研究表明水杨醛亚胺镍配合物中苯环上取代基的电子效应和空间位阻对乙烯聚合活性和聚合物的分子量有所影响。
With increasing the electron withdrawing substituents in the phenoxy ring, the catalytic activity was increased, and the molecular weight of polyethylene decreased.
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