盖板竖井式进/出水口
vertical pipe intake with plate
玛湖-盆1井西复合含油气系统
Mahu Penyijingxi complex system
煤层气参数井
Parameter Well for Coalbed Methane
CBM parameter well
煤层气生产试验井
CBM production testing well
玛湖—盆1井西
Area of Mahu-West of Well Pen 1
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