“氯甲苯”造句

研究了用无溶剂重结晶法提纯2,6二氯甲苯.
Purification of 2,6 dichlorotoluene by the recrystallization method without solvent was studied.

以对氯甲苯为原料,经氯化、水解反应合成对氯苯甲酰氯,总收率. 6%.%.
The total yield and 4 - chlorohenzoyl chloride. 6 % and. %.

研究炭管采集空气中邻 - 氯甲苯的气相色谱分析方法.
GC analytical method for o - chlorotoluene in the workplace air using sampling by charcoal tube was studied.

• #氯甲苯