diglycol🔊 朗读

双语例句

1 . Diglycol diacetate had been obtained with sulfuric acid or toluene - p - sulfonic acid as catalyst in lab.

研究了在实验室条件下,以硫酸、对 甲苯 磺酸为催化剂合成二甘醇二醋酸酯的方法.

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