脈沖反射探傷法pulseenergy: 脈沖能量pulseechomethod: 脈沖反射法; 脈沖回波法pulseenvelope: 脈沖包絡(luò)pulsedarcwelding: 脈沖弧焊pulsefrequent: 脈沖頻率下載手機詞典可隨時隨地查詞查翻譯