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房柱采矿嗣后充填法
释义
房柱采矿嗣后充填法
Encyclopedia
工学
充填采矿法
释
room-and-pillar mining with subsequent backfill
房柱采矿嗣后充填法
用房柱法进行矿石回采,并用充填料一次性充填采空区以支撑围岩,为间柱或周围采场的回采创造条件的采矿方法。
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geography of language
geography of mountain
geography of passenger flow
geography of pipeline transportation
geography of polar region
geography of power
geography of railway transportation
geography of religion
geography of river transportation
geography of rural household
geography of rural poverty
geography of surfaces
Geography of the Countries
geography of transportation sector
geography of tropics
geography of urban transportation
Geography Records of Western Regions
geo-grid map
Geogrids
GEOHAB
geoheritage
geoheritage contrast
geoheritage database
geoheritage protection level
geoheritage protection plan
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