wind tunnel是什么意思

用法例句

Strengthening Ventilation roadway Management to Promoting Mine Safety production;

加强回风巷道管理促进煤矿安全生产

Through the analysis for the 22121 wind alley coal and gas power phenomenon,have summarized the cause of this time power phenomenon.

通过对22121回风巷煤与瓦斯动力现象分析,总结了这次动力现象的成因。

This paper describes spread and application of all belt supporting in intake airflow roadway of 3 # coal seam of Gushuyuan coal mine,working craft,selection of supporting parameter and survey of rock pressure with all belt supporting are introduced.

主要叙述了全锚支护在古书院煤矿 3#煤层进风巷的推广应用。