名词
中文翻译：Unknown
同义词：
['base beacon', 'ground signal', 'ground station', 'ground-based beacon']
例句：
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1. Theground beacon is used to guide the planes during takeoff and landing.
地面信标用于指导飞机起飞和降落。
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2.The ground beacon helps maintain communication with other ships in the harbor.
地面信标帮助维护与港口其他船只的通信。
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3. The ground beacon was designed to provide a stable signal for navigation purposes.
地面信标被设计为提供稳定的信号，以供导航目的。