blocking of drainage 中文意思是什麼
blocking of drainage
解釋
排水阻礙-
With the development of tunneling technique, and in view of environment ( especially water environment ) protection, a principle of limited drainage on the basis of blocking water has been putting forward
隨著隧道修建技術的發展,以及環保(特別是水環境保護)的要求,以堵為主的「控制排水」原則設計問題已經提到有關方面的議事日程。
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