单词	封闭式真空设备
释义	封闭式真空设备sealed vacuum device
随便看	environmental variance environmental variation environmental wind environmental winds environmental zoning environment analog recording system environment analog recording system--ears environment analog recording system，ears environment and curriculum environment attribute environment clause environment cognition environment contamination environment control environment control system environment control table environment control table，ect environment correction factor environment crusade environment data bank environment data bank，edb environment data base environment description environment description on statement environment description statement