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School/Department:未来技术学院

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李树忱

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用于膨胀性土层隧道初期的钢格栅钢拱架联合支护
Release Time:2018-07-04 | Hits:

Type of Patent:发明

Application Number:201410052603.6

Number of Inventors:6

Service Invention or Not:No

Application Date:2014-02-17

Publication Date:2015-10-21

Authorization Date:2014-02-17

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