[電學(xué)] 工作開關(guān) switches: 交換機; 開關(guān)(20,246類)address switches: 地址開關(guān)automatic switches: 自動開關(guān)backbone switches: 骨干網(wǎng)交換機cam switches: 凸輪旋轉(zhuǎn)開關(guān)下載手機詞典可隨時隨地查詞查翻譯