four wire circuit的用法和樣例：
例句
- A circuit arrangement for deriving a phantom circuit. In four wire circuits, the two wires associated with the "GO" channel form one "side circuit", and those associated with the "return" channel form another.
用來(lái)派生一個(gè)幻象電路的電路結構。在四線(xiàn)電路中，與“去程”通道相關(guān)聯(lián)的兩線(xiàn)就形成了一個(gè)“半邊電路”, 而與“回程”通道相關(guān)聯(lián)的兩線(xiàn)構成了另一個(gè)“半邊電路”。
