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newly built railway survey
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newly built railway survey
Encyclopedia
工学
铁路勘测
释
newly built railway survey
新建铁路勘测
新建铁路工程在设计阶段进行的勘测工作。主要是在地形图上研究和实地勘测的基础上选定最经济合理的线路,然后把线路标定在地面上。
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