urban railway traffic engineering
urban railway traffic engineering
城市轨道交通工程
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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With the increasing construction of urban railway traffic engineering in home, its safety is becoming morn and more important.
随着国内城市轨道交通工程的不断建设，其安全问题也变得日益重要。
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