HOLD: The scanner will stop when a signal is received, and will not restart.

锁定：扫描将停在发现的一个信号频率上，不再继续扫描操作。

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The component itself can output a signal to stop the power.

组件本身可以输出一个信号，停止电源。

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Bruce ignored the stop signal and was hit by a taxi.

布鲁斯没注意停车信号而被计程车撞倒。

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Why use a red stop signal?

为什么停车信号要用红色？

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Why use a red stop signal?

为什么停车信号要用红色？

youdao