每日空压机, 真空泵, 干燥机,空调,增湿器等的维护维修, 保证设备的正常运转.Daily check and maintain air - compressor , vacuum, air - dryer air - con, humidifier running status.需要货品: 加热器 、 增湿器及洁净空气器.Products wanted: Heaters, humidifiers and air cleaners.JS...
She was dancing while someone substituted at the piano.她在跳舞,别人代她弹钢琴.Glass blocks are sometimes substituted for ordinary bricks.有时,玻璃砖被用来代替普通的砖.He substituted for the worker who was ill.他顶患病的工人干活....
这封信只不过重复了一下土地法。The letter merely restated the law of the land.能从其他废料中分离出可重复利用成分是很关键的。The ability to separate out reusable elements from other waste is crucial.他不想刻意重复那种讲话的语调。He is not attempting necessarily to reproduce ...
Free arrangement is a very important kind of hyperplane arrangement.自由构形是超平面构形中一类重要的构形.The invention of hyperplane kinescopes is another technical innovation.超平显像管的发明是又一次技术革新.Then the method to construct the optimal sepa...