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...
My hairdresser has opened a new salon.我的理发师新开了一家理发店。Gloria runs a hairdressing salon.格洛丽亚经营着一家发艺沙龙。...a new hair salon.新开的美发厅They sat in Germaine Rocher's salon watching the languid mannequins preen and simper.她们正坐在...