Estonia oil shale mine ventilation intake

Name: Estonia oil shale mine ventilation intake
Uploaded: 2026-08-18T14:04:54
Duration: 153 s
Description: Estonia oil shale mine ventilation intake - Estonia oil shale mine ventilation intake by Taavi Tatsi (02.07.2010 13:50) [CC-BY-SA]

🕐 2026-08-18 14:04:54 ▶ 2 次播放 ❤️ 0 点赞

Estonia oil shale mine ventilation intake - Estonia oil shale mine ventilation intake by Taavi Tatsi (02.07.2010 13:50) [CC-BY-SA]

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Estonia oil shale mine ventilation intake

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