For the expressway running safety and easiness, discussion is made on the maintenance purpose, characteristics and the traffic appurtenant works maintenance.

  • 从保证高速公路安全舒适运营的角度,阐述了高速公路养护维修的目的、特点,以及交通附属设施的养护维修方法。

  • 互联网摘选 2025-01-19 23:26:17

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