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sublevel open stoping with subsequent backfill
释义
sublevel open stoping with subsequent backfill
Encyclopedia
工学
分段充填采矿法
释
sublevel open stoping with subsequent backfill
分段空场嗣后充填采矿法
用分段空场法回采矿房或矿柱,待阶段回采完毕,用充填料一次性充填采空区支撑围岩,为间柱或周围采场的回采创造条件的采矿方法。
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optical gyroscope
Optical Hawaiian Array for Nanoradian Astronomy
optical heterodyne
optical heterodyne detection
optical holographic recording materials
optical holography
optical homodyne
optical horizon
optical hybrid integrated circuit
optical identification
Optical Identification of Radio Source
optical illusion
optical image
optical image measurement
optical image processing
optical imaging
optical imaging log
optical imaging reconnaissance satellite
optical imaging system
optical inclinometer
optical indicatrix
optical information processing
optical information recording material
optical instrument
Optical Instruments
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