在许多细胞中,含量最高的磷脂是磷脂酰乙醇胺或脑磷脂.The most abundant phospholipid in many cells is phosphatidyl ethanolamine or cephalin.乙醇胺在气体的纯化和分离方面也是有用的.Ethanolamines are also of value in the purification and the separation of gases.利用不经提纯的棉...
The unemployed executives include former sales managers, directors and accountants.被解雇的管理人员包括前销售经理、主管和会计。That's not the kind of talk one usually hears from accountants.会计们通常不会说那样的话.Hawley said these costs were scrut...
那头牛弄断系绳,跑到玉米田里去了.The cow had broken its tether and was in the cornfield.那牛弄断了系绳,跑到玉米田里去了.The cow had broken her tether and was in the cornfield.船帆用系绳紧紧绑在帆桁上.The sail is fastened to the yard with tiers....