名词
中文翻译：Unknown
同义词：
['steel rail', 'steel track例句：1. The train was equipped with steel sub-treads for better traction.（火车配备了钢副轨，以便获得更好的牵引力。）2. The construction crew used steel sub-treads to reinforce the foundation of the bridge.（施工队使用钢副轨加固桥梁的基础。）']
例句：
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1. The train was equipped with steel sub-treads for better traction.
火车配备了钢副轨，以便获得更好的牵引力。
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2. The construction crew used steel sub-treads to reinforce the foundation of the bridge.
施工队使用钢副轨加固桥梁的基础。
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3.The new railway line will have steel sub-treads to reduce noise pollution.
新的铁路线将采用钢副轨以减少噪音污染。