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围岩工程地质分类
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围岩工程地质分类
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工学
地下洞室工程地质勘察
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surrounding rockmass classification of underground engineering
围岩工程地质分类
为评价地下洞室的成洞条件和围岩稳定性而对岩体进行的工程地质分类。地下洞室围岩分类是对围岩的整体稳定程度进行判断,并指导开挖与系统支护设计。
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National Association for the Advancement of Colored People,U.S.
National Association for the Education of Young Children
National Association of College Stores
national astro-geodetic network
national astronomical data center
National Astronomical Observatories, Chinese Academy of Sciences
national astronomical observatory
National Astronomical Observatory of Chile
National Astronomical Observatory of Japan
National Astronomical Research Institute of Thailand
National Astronomy and Ionosphere Center
national atlas
National Automobile Quality Supervision and Inspection Center(Beijing Tongzhou)
National Autonomous University of Honduras
National Autonomous University of Mexico
National Autonomous University of Nicaragua
national autonomy
National Autonomy Party
National Award for Excellent Publishing Scientific Research Paper
National Award for Natural Sciences
National Award for Science and Technology Progress
National Award for Technological Invention
National Award of Excellent Script for Drama and Opera
national balance sheet
National Ballet of China
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