矿井通风工（技师 修订本）/煤炭行业特有工种职业技能鉴定培训教材
Official training textbook for coal industry mine ventilation technicians pursuing certification and skill development.
About This Book
This book serves as a training textbook for mine ventilation workers seeking technician certification.
It is published as part of the official vocational skill identification series for the coal sector.
The content supports standardized skill development for workers in specialized mining roles.
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