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井下空硐测量 meaning in English

underground cavity survey
undergroundcavitysurvey

Related Words

  1. 硐
  2. 斜硐
  3. 平硐
  4. 川硐
  5. 躲避硐
  6. 坑硐
  7. 纸硐
  8. 硐室
  9. 探硐
  10. 硅硐
  11. 井下刻度
  12. 井下空气
  13. 井下控制井下安全阀
  14. 井下控制油嘴
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