Title : 一种用于软弱围岩隧道抗钢拱架沉降的装置及方法
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Title:一种用于软弱围岩隧道抗钢拱架沉降的装置及方法
Type of Patent:发明
Application Number:202111083668.3
Number of Inventors:1
Service Invention or Not:no
Application Date:2021-09-14
Publication Date:2022-11-04
Authorization Date:2022-11-04
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