名词
中文翻译：火车位置指示器
同义词：
['train position indicator', 'train position indicator', 'train position indicator']
例句：
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1. Thetrain position indicator on the train is very useful for passengers to know their exact location.
火车上的火车位置指示器对乘客来说非常有用，可以帮助他们了解自己确切的位置。
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2.The train position indicator helps us to keep track of the train's movement and ensure our safety during the journey.
火车位置指示器帮助我们跟踪火车的移动，确保我们在旅途中的安全。
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3. The train position indicator can also be used by other trains to indicate their own position in relation to the main train.
火车位置指示器也可以被其他火车用来表示它们相对于主火车的位置。