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一种适用于软岩大变形隧道支护的多级让压式锚杆

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Affilication of Author(s):土建与水利学院

Type of Patent:发明

Application Number:202110368304.3

Number of Inventors:2

Service Invention or Not:no

Application Date:2021-04-06

Publication Date:2022-03-04

Authorization Date:2022-03-04

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