单词	原形模--母模
释义	原形模；母模master mould
随便看	safety radio certificate safety radiotelegraphy certificate safety radiotelephone certificate safety rail safety rail fork safety rate safety razor safety razors safety regulation safety--regulation safety regulations safety related bus safety related bus voltage safety related electrical equipment for npp safety-related instrumentaion and control systems safety related load safety relay safety release safety release clutch safety-relief area safety relief valve safety-relief valve safety remote control safety report safety requirement