chlorotoluene例句
2024年07月01日 15:00:52
GC analytical method for o -
chlorotoluene in the workplace air using sampling by charcoal tube was studied.
研究炭管采集空氣中鄰 - 氯甲苯的氣相色譜分析方法.
Taking p
chlorotoluene as raw material , 2,4 Dichlorotoluene was synthesized via catalytic chlorination process.
以對氯甲苯為原料, 經(jīng)催化氯化制取2,4二氯甲苯.