抽气泵的排气管应该导向室外空旷处或导向一座通风橱.The pump exhaust should lead to the open air or a fume hood.设计了一套硅片专用真空夹紧装置,包括夹紧装置和微型无油真空抽气泵.A vacuum clamp equipment used for holding Si wafer is designed in this paper....
His office was in keeping with his station and experience.他的办公室与其身份和阅历相称。The money to build the power station ought to have been sufficient.建设电站的资金本该足够了。The railway station smelt powerfully of cats and drains.火车站上有冲鼻的猫味和...
我们一家的开销每月共计四百元.The monthly expenditure of our family is four hundred dollars altogether.这张账单共计500美元.The bill amounts to $ 500.费用共计50美元.The expenses foot up to 50 dollars....
Boy, that salesman was the biggest airhead I've ever seen.□好家伙, 那个男售货员是我见过的最愚蠢的人.She's a total airhead!她完全是个大傻瓜！I'm not a complete airhead.我可不是个十足的大傻瓜.I’m not a complete airhead.我可不是个十足的大傻瓜。...