矿井水水质评价
mine water quality assessment
水井、井水及废水
Wells and well water and waste water
精煤水煤浆
refined coal water slurry
CWS
煤矿井下梭车用软电缆
cabtyre cables used for the shuttles under coal mine
煤矿井下用隔爆型三相异步电动机
Flame-Proof Three-Phase Induction Motor for Underground Mine Application
煤矿井下综合自动化系统
integrated automation system of coal mine
煤矿水害
coalmine water disaster
coal mine flood
coalmine flooding
Coal mine’s water disaster
煤矿水害预测
forecast of water disaster in coal mine