基本解釋串聯(lián)閘刀開(kāi)關(guān)詞組短語(yǔ)短語(yǔ)tandem -knife switch 串閘刀開(kāi)關(guān)tandem knife switch更多詞組專業(yè)釋義動(dòng)力與電氣工程串聯(lián)閘刀開(kāi)關(guān)