名词
中文翻译：罗兰
同义词：
['Loran-C', 'Loran-C signal']
例句：
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1. The satellite transmits Loran-C signals to the ground station.
卫星向地面站发送罗兰-C信号。
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2. The Loran-C signal was used to determine the location of the lost aircraft.
罗兰-C信号被用来确定失事飞机的位置。
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3. The Loran-C signal was crucial for the rescue operation.
罗兰-C信号对于救援行动至关重要。