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Title:隧道二衬开裂破损处异径自适应膨胀注浆装置及加固方法
Institution:岩土与地下工程研究院
Type of Patent:Invent
Application Number:201910983845.X
Number of Inventors:1
Service Invention or Not:No
Application Date:2019-10-16
Publication Date:2021-04-13
Authorization Date:2021-04-13
Release Time:2021-05-21