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room-and-pillar mining meaning in English

房柱法开采

Examples

  1. Pillar drawing in room - and - pillar mining at jinshan gold mine
    金山金矿房柱法开采的矿柱回采

Related Words

  1. pillar method
  2. pillar stiffener
  3. coral pillar
  4. pillar operation
  5. bringback pillar
  6. built pillar
  7. hollow pillar
  8. sun pillar
  9. granite pillar
  10. draw pillars
  11. room with shower
  12. room-and-pillar caving
  13. room-and-pillar structure
  14. room-and-pillar working
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