干煤粉输送系统
coal powdered feeding system
煤粉气力输送
Pneumatic Conveying of Pulverized Coal
铁矿粉、煤粉混合料
iron ore concentrate and pulverized coal composite
输煤输电
Coal Handling and Power Transmission
输送煤水
symmetrical allocation impellers
原煤输送系统
conveyer system of raw coal