名词
中文翻译：后置信号系统
同义词：
['posterior signal system', 'rearward signal system']
例句：
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1. The rear-signal system is crucial for maintaining safe distance from the vehicle ahead.
后置信号系统对于与前方车辆保持安全距离至关重要。
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2. In the rear-signal system, the driver can use a handheld device to control the lights and sirens.
在后置信号系统中，驾驶员可以使用手持设备来控制灯光和警笛。
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3.The rear-signal system helps drivers to communicate with each other and maintain order on the road.
后置信号系统帮助司机相互交流并维护道路上的秩序。