英语词汇“room-and-pillar stoping”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	room-and-pillar stoping
释义	room-and-pillar stoping 房柱采矿法
随便看	spark blow-out coil spark blow-out plate spark breakdown Sparkbrook spark capacitor spark catcher spark chamber spark chamber picture spark chambers spark channel spark character spark circuit spark clearance spark-coil spark coil sparkcoil spark coil leak detector spark-coil leak detector spark coils spark condenser spark contact spark control spark control lever spark control valve spark counter nzjg nzjr nzjz nzlg nzly nznb nzng nzns nznz nzqj 扑倒扑克扑哧扑噜扑地扑天盖地扑忙扑忙子扑扇扑扑