This paper makes an introduction of the principles, composition and operating method of this determinator.介绍了仪器的原理 、 组成及使用方法.The principle, structure and characteristic of Hydrogen determinator and it's application ...
I spoke from the pulpit ad lib.我在讲坛上发表即兴演说。I lost my notes and had to ad - lib the whole speech.我把讲稿丢了,只好临时说了一通.She delivered her lines ad - lib.她是即兴说出的台词....
那栋房子在5年内易手了3次.That house has changed hands three times in five years.该店一周内易手两次.The shop changed hands twice within a week.在这一过程中, 资金周转率(资金易手的速度)就会急剧提高.In the process, the velocity of money - the speed at which it changes...