井上下气压监测对通风阻力测定影响的优劣分析井上下氣壓鑑測對通風阻力測定影響的優劣分析 정상하기압감측대통풍조력측정영향적우렬분석 Analysis on advantage and disadvantage of influence of pressure supervision up - and - down shaft to ventilation resistance measure
万方数据
山东煤炭科技山東煤炭科技산동매탄과기 Shandong Coal Science and Technology 2002年6期35-36,共2页
