Since a minepumping system can generally be simplified into a complicated pipe-line system in series, the transient process is simulated by a method of characteristic line.
根据矿井排水系统一般可以简化为串联复杂管路系统的特点，采用特征线法模拟其断电停泵的瞬变过程。
2
The engine is used for pumping water out of the mine.
这台发动机是用来从矿井中抽水的。
《牛津词典》
3
The rheological characters and pumping technologies of mine cream-body fill are mainly studied in the dissertation.