名词
中文翻译：单针轨道
同义词：
['single-pin rail', 'single-pin track例句：1. The train uses a single-pin track to travel along the tracks.（火车使用单针轨道沿着轨道行驶。）']
例句：
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1. The train uses a single-pin track to travel along the tracks.
火车使用单针轨道沿着轨道行驶。
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2.The single-pin track is used for transportation purposes.
单针轨道用于交通目的。
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3.The single-pin track was installed in the new bridge.
新桥安装了单针轨道。