名词
中文翻译：跟踪轮
同义词：
['tracking wheel', 'trackingdevice']
例句：
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1. The car's track wheel is worn out,so I need to replace it.
车的跟踪轮磨损了，所以我需要更换它。
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2.The engineer used a track wheel to guidethe robot through the tunnel.
工程师使用一个跟踪轮来引导机器人穿过隧道。
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3. Thenew model of the car has a moreadvanced track wheel system.
这款新车的跟踪轮系统更加先进。