He delivered his words in slow, measured cadences.他讲话缓慢而抑扬顿挫、把握有度。He's also a devout Catholic with a missionary fervor, and his conversation glistens with Biblical cadences.他也是个虔诚的天主教徒,有传教士般的使命感, 言谈充满圣经警句般美妙的韵律.He r...
Nefedipine was synthesized with m - Nitrobenzaldehyde, ethyl acetoacetate ammonium acetate.以间硝基苯甲醛, 乙酰乙酸乙酯,氨化试剂为原料.The cross - linking reaction between dialdehyde compound and cellulose acetate raises the chemical stabil...