Abstract Long alkyl groups were introduced to the upper rim of calyx[4]arenes by Friedel-Crafts reaction of calyx[4]arenes and long alkylating agents.是什么意思_Abstract Long alkyl groups were introduced to the upper rim of calyx[4]arenes by Friedel-Crafts reaction of calyx[4]arenes and long alkylating agents.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句