Mandelic acid and its analog can be synthesized from aromatic aldehydes and chloroform as raw material with the help of phase transfer catalyst.是什么意思_Mandelic acid and its analog can be synthesized from aromatic aldehydes and chloroform as raw material with the help of phase transfer catalyst.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句