In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent.在乙酰化、硝化反应中引入了1,2-二氯乙烷溶剂.Dichloroethane can be converted to VCM.二氯乙烷被转化为氯乙烯.Objective : To investigate the CT and MRI features of Subac...
He is on a trek through the South Gobi desert.他正徒步穿越南戈壁沙漠。He had prospected for minerals everywhere from the Gobi Desert to the Transvaal.他已在从戈壁沙漠到德兰士瓦的无数地方勘探过矿藏。He had prospected for minerals everywhere from the Gobi De...
Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。Smoke was used to simulate steam coming from a smashed radiator...用烟来模拟从撞碎的散热器中冒出的蒸气。A household radiator absorbs energy in the form of electri...
The world breaks everyone, and afterward, many are stronger at the broken places.生活总是让我们遍体鳞伤，但到后来，那些受伤的地方会变得更坚强。The happiest are not those who own all the best things, but those who can appreciate the beauty of life.最幸福的...