He is legendary for his fearlessness and pugnacity.他是出了名的大胆好斗。It is our duty to cultivate the spirit of boldness and fearlessness.我们的责任是培育大无畏的精神.We also protect all cultivators, so that their Bodhimandas are peaceful and...
GC analytical method for o - chlorotoluene in the workplace air using sampling by charcoal tube was studied.研究炭管采集空气中邻 - 氯甲苯的气相色谱分析方法.Taking p chlorotoluene as raw material , 2,4 Dichlorotoluene was synthesized via catal...