名词短语
中文翻译：摇摆信号
同义词：
['swinging message', 'swinging signal']
例句：
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1. The police were monitoring aswinging signal to track down the suspect.
警方正在监控一个摇摆信号以追踪嫌疑人。
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2. The ship's radio was sendinga swinging signal to its base.
这艘船的无线电正在向其基地发送摇摆信号。
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3. The military used swinging signalsto communicate with their troops in the field.
军队使用摇摆信号与前线部队进行通信。