名词
中文翻译：应答机天线
同义词：
['transponder', 'transponder antenna', 'transponder system']
例句：
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1. Thetransponder antenna is used to communicate with spacecraft.
应答机天线用于与太空船通信。
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2. The transponder antenna was designed to detect signals from space.
应答机天线被设计用来探测来自太空的信号。
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3. The transponder antenna was used to track the location of a satellite.
应答机天线被用来追踪卫星的位置。