网络释义
1)board and pillar method,房柱式开采法2)board and wall method,房柱式开采法3)bord and pillar method,房柱式开采法4)bord and wall method,房柱式开采法5)heading and stall method,房柱式开采法6)heading and stall system,房柱式开采法7)stall and breast method,房柱式开采法8)stoop and room,房柱式开采法9)stoop and room system,房柱式开采法10)room and pillar,房柱
