According to the problems of transportation line at present, the method about distance corrected is proposed. Furthermore, the evaluation standard about necessary of the construction of service roadway and auxiliary bridge constructed is established.

  • 针对运输线路上目前存在的问题,提出了对里程进行改正的方法,以及对修建便道、便桥的必要性提出了评价标准。

  • 互联网摘选 2025-01-19 23:22:20

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