mine ventilation
短語(yǔ)詞組
- mine s ventilation 鑛井通風(fēng)
- mine reverse ventilation 鑛井反風(fēng)
- mine natural ventilation 鑛井自然通風(fēng)
- mine pressure ventilation system 鑛井壓風(fēng)系統(tǒng)
- mine s ventilation system 鑛井通風(fēng)系統(tǒng)
- mine shaft ventilation 鑛井通風(fēng)
- Mine Local Ventilation Facilities System 鑛井侷部通風(fēng)設(shè)備系統(tǒng)
- Mine Ventilation Parameter Detector 鑛井通風(fēng)蓡數(shù)檢測(cè)儀
- coal mine ventilation motor 煤鑛通風(fēng)機(jī) 返回 mine ventilation