名词
中文翻译：回程段
同义词：
['reciprocal section', 'return section', 'reciprocal segment']
例句：
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1. The engineer designed the bridge to accommodate both directions of traffic.
工程师设计了这座桥，以容纳双向交通。
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2.The train's regrinding section is crucial for ensuring passenger safety.
火车的回程段对于确保乘客安全至关重要。
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3.The company plans to expand its regrinding section to improve efficiency.
该公司计划扩大其回程段以提高效率。