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两步骤回采
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两步骤回采
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回采工艺
释
two step mining
两步骤回采
在回采过程中,将采区或矿块划分为矿房和矿柱,第一步骤回采矿房,第二步骤回采矿柱的回采方式。
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extremal orbit
extremal order statistic
extremal point
extremal point theorem
extremal polynomial
extremal principle
extremal problem
extremal problem of thermodynamics
extremal process
extremal property
extremal quadrature formula
extremal quasi-conformal mapping
extremal quotient
extremal ray
extremal set
extremal set theory
extremal slit mapping
extremal solution
extremal subset
extremal surface
extremal system
extremal test
extremal theorem
extremal trajectory
extremal value
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