名词
中文翻译：无线发射器
同义词：
['radio', 'wireless receiver', 'radio transmitter']
例句：
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1. The wirelesstransmitter is used to send signals overlong distances.
无线发射器用于远距离发送信号。
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2. The wireless transmitter was designedto be easy to use and maintain.
无线发射器设计为易于使用和维护。
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3. Thewireless transmitter was used to broadcast thenews from afar.
无线发射器被用来从远处广播新闻。