signal box

听听怎么读
英 [ˈsiɡnəl bɔks]
美 [ˈsɪɡnəl bɑks]
是什么意思
  • n.

    (铁路上的)信号塔,(警察或火警系统的)警报箱;

  • 变形

    复数:signal boxes

    英英释义

    signal box

    • n.a building from which signals are sent to control the movements of railway trains
    学习怎么用

    双语例句

    用作名词(n.)
    1. The jamming technology works by sending out a radio signal so powerful that phones are overwhelmed and cannot communicate with cell towers.
      干扰技术就是能够发出无线信号,干扰与信号塔的联络。

    权威例句

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