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closed goaf meaning in English

封闭空区

Related Words

  1. goaf
  2. goaf filling
  3. goaf shield
  4. goaf road
  5. goaf stowing
  6. caved goaf
  7. goaf management
  8. mine goaf
  9. goaf degasification
  10. goaf old waste
  11. closed gilt
  12. closed gland
  13. closed gonioscope
  14. closed grained
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