单词	db-- decibel
释义	db; decibel分贝
随便看	condenser performance test condenser pick-up condenser piping condenser pressure condenser pressure switch condenser pump condenser reactance condenser-receiver condenser recirculating vlave condenser-- reflux condenser relief valve condenser r-meter condenser roentgen condenser roentgen meter condenser roentgen--meter condensers condenser scoop condenser sheet condenser shell condenser shell connection condenser shell connections condenser shell penetrations condenser shunt-type motor condenser spark condenser speaker