短語詞組短語bus matrix switch 縂線矩陣交換bus connection switch 母聯(lián)開關(guān)bus interchange switch 縂線互換開關(guān)bus disconnecting switch 母線斷路器bus isolating switch 母線隔離開關(guān)Bus Exchange Switch 縂線交換開關(guān)bus segment switch 母線分段開關(guān)utility bus switch 公用滙流條開關(guān) 返回 bus switch