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pulverized coal injection system (The investment will be used to complete facilities under construction, including a pulverized coal injection system at the No.4 blast furnace, as well as a galvanizing line and other renovations to rolling mills. 这项投资将用于完成一些在建的设备,包括4号高炉的一套粉煤喷吹系统、一条镀锌生产线和轧机的更新改造。) |
粉煤喷吹系统 : 3 phrases in 1 subject |
Metallurgy | 3 |