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回采预留矿柱
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回采预留矿柱
释
ore pillar for mining
回采预留矿柱
为保护地表地貌、地面建(构)筑物和主要井巷,分隔采区或矿段,以及防水等而留设不采或暂时不采的部分矿体。煤矿中也称煤柱。
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rocky desertification
rocky desertification in China
rocky design
rocky dwarf
rock yield stress
Rocky Mountain National Park
Rocky Mountain News
Rocky Mountains
Rocky Mountain spotted fever
rocky planet
Rocky pumped-storage power station
Rock’n Roll
Rococo
Rococo costume
Rococo gardens
rococo style
rocuronium
ROC曲线
rod
rod-and-frame apparatus
rod and wire continuous casting and rolling
rod-arithmetic
rodball mill
rod bipolar cell
rod cell
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