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矿井通风
释义
矿井通风
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矿井通风
释
mine ventilation
矿井通风
向井下连续输送新鲜空气,稀释并排出有毒有害气体和粉尘,以及调节井下气候的全过程。
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Huaan Xian
Hua'ao Dao
Huabei Incident
Huabei Oil-exploration Campaign
Huaben
Hua Benjia
Huabiao Film Awards
Huabu、Yabu(folk opera and Kunqu opera)
Hua Cha
Huachai Nakrop
Huachanshi Studio’s Essays
Huachao opera
Huachenggang
Huachi Xian
huachong pill
Huachuan national forest park
Huachuan Xian
Huadeng opera in northern Hunan
Huadeng opera in southern Hunan
Huadeng opera in western Hunan
Huadeng opera of Guizhou Province
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