The sample, after being purged by reversed extraction and purified byPVP - kieselguhr column, was enriched through Amberlite XAD - 7 column.样品经过乙酸乙酯反萃取及PVP - 硅藻土层析柱后, 再径XAD - 7柱浓缩....
被解雇的管理人员包括前销售经理、主管和会计。The unemployed executives include former sales managers, directors and accountants.等到经理不干了之后，我想接替他的位子。I want the manager'sjob when he calls it a day.那位要人到达时，俱乐部经理亲自陪他上楼。When the great man arriv...
规友私室,赞友公堂.Admonish your friend in secret , commend him in public.他与顾问们在私室里密谈.He closeted himself with his councilors.整洁的人每次经过私室时都会扔掉几件玩具.Neat people throw away several toys every time they walk through the den....
Unenlightened and undirected, I can do so little.但若得不到启蒙和指导，我就差不多无能为力了。A circ is an undirected graph having only vertices of even nonzero degree.一广义圈是一无向图,其顶点次数都是非零偶数.To determine a given undirected network whether it is...
They defined simply by a dichotomous division within the upper, middle, and lower classes.他们简单地用一种两分法划为上 、 中 、 下等阶级.The 2 test and Student t test were used to compare dichotomous and continuous variables, respectively.分别...