甘油是所有脂肪和磷脂的组成部分.Glycerol is a constituent of all fats and phospholipids.有人建议在硝化之前,把甘油聚合.Some people proposed polymerizing the glycerine prior to nitration.有人研究过甘油一硝酸脂的性质.The properties of mononitroglycerine were investig...
Plagues were for merly regarded as a visitation of God.瘟疫从前被认为是上帝的惩罚.Europe suffered many plagues in the Middle Ages.欧洲在中世纪屡屡遭受瘟疫.Plagues aside, many critics see xenotransplantation as a colossal waste of resources.除了疫病外...
他发现自己已无力应对那份劳神费力的工作了。He found he could no longer cope with his demanding job.他派我去干白费力的事。He sent me on a fool's errand .这项费力的工作足以使人精疲力竭.This exhausting work is enough to run everyone down....