载物台 objective table
伪倾斜工祖 oblique face
斜钻孔 oblique hole
障碍物 obstacle
保安矿柱 obstructive ridge
职业尘末 occupational dust
海中钻塔 off shore rig
油浮选 oil flotation
油浸断路器 oil immersed circuit breaker
油灯 oil lamp
油压第器 oil pressure regulator
油浮选法 olco floatation process
伪倾斜工祖 oblique face
斜钻孔 oblique hole
障碍物 obstacle
保安矿柱 obstructive ridge
职业尘末 occupational dust
海中钻塔 off shore rig
油浮选 oil flotation
油浸断路器 oil immersed circuit breaker
油灯 oil lamp
油压第器 oil pressure regulator
油浮选法 olco floatation process
老塘 old man
连续工妆期 on stream period
歉锹砖 赭 one man drill
单段破碎 one stage crushing
单向行车 one way traffic
鱼卵岩 oolite
软泥质的 oozy
矿山开发 open a mine
露天爆破 open blasting
空心垛式支架 open cog
短柱开采法 open end method
液压支架最大高度 open height
无套管钻孔 open hole
露天矿阶段 open pit bench
空场采矿法 open stope method
空场采掘 open stope mining
露天开采工作 open work
露天采煤 opencast coal mining
露天采矿机械 opencast mining machinery
开拓掘进 opening driving
排水巷道 opening for drainage
开发矿山 opening up
平硐开拓 opening up by adits
暗井开拓 opening up by blindshaft
斜井开拓 opening up by inclined shafts
竖井开拓 opening up by vertical shafts
单独开拓 opening up individually
巷道网 openings network
生产矿 operating mine
蛇纹大理石 ophicalcite
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