Machine parts of irregular shape can be washed very clean by ultrasonics.用超声波能把形状不规则的机件洗得很干净.In medical and other applications of ultrasonics , a variety of electronic instrumentation is used.超声波在医学和其它应用中, 要使用许多电子仪器设备.Th...
The ultrasonics stopped and the light went soft.超声波停了，灯光也弱了一些。In medical and other applications of ultrasonics , a variety of electronic instrumentation is used.超声波在医学和其它应用中, 要使用许多电子仪器设备.Machine parts of irregular shape ...
The price tag on the 34-room white Regency mansion is £17.5 million.那栋有34个房间的摄政时期的白色官邸报价为1,750万英镑。He remains barricaded inside his heavily-fortified mansion.他在自己防卫森严的宅院里把自己与外界隔绝开来。an 18th century country mansion18世纪的乡村宅第...