[電] 多相電壓電源 balanced polyphase source: 平衡多相電源diametral voltage of polyphase system: 多相系的徑電壓mesh voltage of a polyphase system: 多相系邊電壓source of voltage: 電源source voltage: 電源電壓; 源電壓下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯