full-face tunnel(l)ing

 
  • 全面開挖

full-face tunnel(l)ing的用法和樣例:

例句

  1. In many projects, like the Simplon, for example, a small pilot tunnel is driven before the full diameter of the tunnel is excavated.
    在許多隧道工程中,經如辛普龍大隧道,都要在隧道全面開挖前打一個導洞。
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