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drainage mining
meaning in English
坑道采矿法
Examples
Practice of controlling gas from long distance high
drainage mine
of goaf in 21121 fully - mechanized coal winning face of shanjiaoshu coal mine
山脚树矿21121综采面采空区远距离高抽巷治理瓦斯的实践
Related Words
drainage layer
drainage quota
drainage authority
tidal drainage
drainage speed
drainage exponent
integrated drainage
gauged drainage
drainage bottle
drainage property
drainage measure
drainage metallometric survey
drainage modulus
drainage morphometry
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