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风镐落煤法 meaning in Chinese

pneumatic pick mining

Related Words

  1. 风镐
  2. 采煤风镐
  3. 风镐采矿
  4. 落煤风镐
  5. 湿式风镐
  6. 风镐修琢
  7. 手持式风镐
  8. 鹤咀锤风镐
  9. 落
  10. 落煤
  11. 风镐
  12. 风镐采矿
  13. 风镐修琢
  14. 风格
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