steric influence的意思|示意

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。

The steric influence and hydrophobicity of CE10P protect the cross-link from hydrolysis and lead to improve chemical resistance;

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；