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一种适用于砂土层浅埋隧道超前预注浆装置及施工工艺

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  • Affilication of Author(s):岩土与结构工程研究中心

  • Application Number:201510761912.5

  • Number of Inventors:1

  • Service Invention or Not:no

  • Application Date:2015-11-10

  • Application Date:2015-11-10
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