The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.

讨论了气态摩尔标准生成焓与取代基常数间的线性关系。

The substituent effect was discussed.

并对取代基效应作了解释。

Conclusion 24-substituent of sterol affects the absorption of sterols.

结论甾醇结构中的24位取代基影响甾醇的吸收。

This invention relates to a preparation method of substituent glutaric acid anhydride.

本发明涉及取代基戊二酸酐的制备方法。

Furthermore, the migration ability of substituent of ketone had a significant impact on selectivity.

同时，迁移集团的迁移能力也对反应的选择性有很大的影响。