The actibation barrers for the rate detdrmining steps to form exo and endo products are 50 17 and 50 67kJ/mol,respectively and the exo one is slightly lower than endo one.是什么意思_The actibation barrers for the rate detdrmining steps to form exo and endo products are 50 17 and 50 67kJ/mol,respectively and the exo one is slightly lower than endo one.在线翻译_英语_读音_用法_例句