benzene dicarbonic acid

【机】苯二甲酸,苯二羧酸

机械



双语例句

  1. This paper applies a method of determining organic contaminations in air at chemical plant for producing benzene dicarbonic acid anhydride by concentration-gas chromatography.
    本文用富集&气相色谱法对苯酐厂区大气中的有机污染物的测定方法进行了研究。Air(初三适用)