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Hydroelectric power stations
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classification of
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Classification of
engineering rock mass
工程岩体分类
classification of
lightning protection
防雷分类
classification of
permeability of rocks
岩土渗透性分级
(soils)
engineering geological
classification of
rock mass for dam foundation
坝基岩体工程地质分类
engineering geological
classification of
surrounding rocks for underground chambers
地下硐室围岩工程地质分类
Q-system of rock mass classification
岩体分类 Q 系统
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