并对取代基效应作了解释。
讨论了化合物中取代基效应与激光性能之间的关系。
The effects of substituents on laser characteristics are discussed.
本文研究了联苯取代物双电荷离子2E谱及其取代基效应和靶气压力影响。
A study of doubly charged ion mass spectra (2E spectra), the substituents effect and the target gas pressure deppendence of biphenyl derivitives was presented in this work.
用自洽场全略微分晶体轨道法对聚茚并茚及其取代衍生物的电子结构进行了计算研究，探讨了取代基效应。
The electronic structures of polyindenoindenes (PInIn) and their derivatives have been studied by self - consistent - field crystal orbital method. The substituent effect is also discussed.
用自洽场全略微分晶体轨道法对聚茚并茚及其取代衍生物的电子结构进行了计算研究，探讨了取代基效应。
The electronic structures of polyindenoindenes (PInIn) and their derivatives have been studied by self - consistent - field crystal orbital method.
作者认为影响聚合物等规度的因素主要是取代基的极性效应。
The tacticity of polymers is mainly influenced by the polarity of substituent group of vinyl monomer.
所研究化合物的生物降解性主要与取代基的电子效应有关。
It is also shown that the biodegradability of studied compounds is mainly related to the electronic effect of substitute groups.
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.
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.
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.
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