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Title:一种隧道顶部溶洞的防护处治方法
Institution:岩土与地下工程研究院
Type of Patent:Invent
Application Number:201510036310.3
Number of Inventors:5
Service Invention or Not:No
Application Date:2015-01-22
Publication Date:2017-01-18
Authorization Date:2017-01-18
Release Time:2019-04-16