名词
中文翻译：铁轨拱形结构
同义词：
['railway arch', 'rail bridge']
例句：
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1.The railway arch is a crucial part of the railway system.
铁路拱门是铁路系统的重要组成部分。
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2.The engineer carefully inspected the rail arch to ensure its safety.
工程师仔细检查了铁路拱门，以确保其安全。
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3.The construction of the new railway arch will greatly improve transportation efficiency.
新铁路拱门的建设将大大提高运输效率。