[電] 對稱多相電壓電源 polyphase symmetrical system: 多相對稱系統(tǒng)symmetrical polyphase circuit: 對稱多相電路symmetrical polyphase system: 對稱多相制balanced polyphase source: 平衡多相電源diametral voltage of polyphase system: 多相系的徑電壓下載手機詞典可隨時隨地查詞查翻譯