This paper introduces the decompression ventilation technique with local fans in the excavation of the mine.

对矿井开采中采用的局部扇风机进行泄压通风的技术作了介绍。

youdao

This paper introduces the decompression ventilation technique with local fans in the excavation of the mine.

对矿井开采中采用的局部扇风机进行泄压通风的技术作了介绍。

youdao