名词
中文翻译：无线电应答机同义词
同义词：
['radio receiver', 'radio transmitter']
例句：
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1. The police used a radio transponder to track down the suspect.
警方使用无线电应答机追踪嫌疑人。
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2. The pilot used his radio transponder to communicate with the air traffic control tower.
飞行员使用他的无线电应答机与空中交通管制塔进行通信。
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3. The military used radio transponders to maintain contact with their units in remote areas.
军队使用无线电应答机与他们的单位在偏远地区保持联系。