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Title:一种破碎围岩巷道底臌治理支护结构
Institution:齐鲁交通学院
Type of Patent:Utility models
Application Number:202122076639.6
Number of Inventors:1
Service Invention or Not:No
Application Date:2021-08-31
Publication Date:2022-01-18
Authorization Date:2022-01-18
Release Time:2022-01-20