superficial layer shading excavation

 
  • 淺埋暗挖

superficial layer shading excavation的用法和樣例:

例句

  1. The ground settlement of a shallow metro tunnel by excavation has important effect on the construction safety.
    淺埋暗挖地鐵隧道施工期地表沉降量對施工安全具有重要意義。

superficial layer shading excavation的相關(guān)資料:

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