Steam engines were originally designed to pumpwater out of the pits and railways to move coal around them.
蒸汽机早期用于矿井和铁路抽水来转移其周围的煤矿。
2
Briefly introduce the electricity control principle for the oxygen pump frequency converter of the air separation unit (ASU) in the coalwater slurry gasification.
简单介绍了水煤浆装置空分氧泵变频器的电气控制原理。
3
After fine clean coalwater mixture has burnt in a diesel engine for a certain period of time, the plunger coupling parts in mixture pump are always jammed.