名词
中文翻译：追踪轮
同义词：
['tracking wheel', 'speedometer wheel']
例句：
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1.The car's tracer wheel is a crucial part of the safety system.
汽车的追踪轮是安全系统的重要组成部分。
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2.The engineer used the tracer wheel to measure the distance traveled by the train.
工程师使用追踪轮测量了火车行驶的距离。
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3.The driver was instructed to use the tracer wheel to adjust the speed on the highway.
司机被指示使用追踪轮来调整高速公路上的速度。