煤矿用通风机
Ventilator for coal mine application
煤矿主通风机
main coal mine ventilator
煤矿风机主扇监控系统
Monitoring system of main fan of colliery
通用主机
universal host machine
UHM Universal Host Machine
UHM
对旋式主通风机
counter-rotɑtory mɑin fɑn
防爆式矿用机车
permissible mine locomotive
矿用对旋轴流通风机
Counter rotating axial ventilation fan for mine use