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....
...the Battle of Hastings at which the Norman army routed the English opposition.诺曼军队彻底击溃英格兰军队的黑斯廷斯战役Our army routed the enemy into running for their lives.我们的队伍把敌人打得仓皇逃命.Napoleon had routed Blucher three days earlier.早在...
如果症状较轻，试试用非处方药来治疗。If you have only mild symptoms, try an over-the-counter treatment.你在服用其他什么处方药或非处方药吗？Are you taking any other medicines whether on prescription or bought over the counter?我很好奇,这个医生开的是什麽处方药 呢 ?Mark , I wo...