花灯集英语字典

hook-on instrument

H 开头单词

常见例句

    双语例句

  • The automatic two-way signaling used on these circuits causes the station instrument on one end of the circuit to ring when the station instrument on the other end goes off-hook.
    这些线路上使用的自动双向信令引起线路一端的电话机振铃，而另一端的电话机摘机应答。
    • 返回 hook-on instrument