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pillar of coal meaning in English

煤柱

Examples

  1. This method uses pillars of coal to hold up the mine ' s roof
    这种方法使用煤柱支撑矿井的顶部。

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. pillar mining
  12. pillar of autumn
  13. pillar of diamond
  14. pillar of diaphragm
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