对矿井排水系统的安全性进行了分析，提出了泵组排水系统技术方案，并对这种方案的安全性、技术性、经济性给予探讨。
The safety of pumping water system in the mine is analysed and technique scheme of pump group pumping water system is put forward.
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。
Since a mine pumping system can generally be simplified into a complicated pipe-line system in series, the transient process is simulated by a method of characteristic line.
对矿井排水系统的安全性进行了分析，提出了泵组排水系统技术方案，并对这种方案的安全性、技术性、经济性给予探讨。
The safety of pumping water system in the mine is analysed and technique scheme of pump group pumping water system is put forward. And safety, technicality, economy of this measure has been studied.
他们使用机器泵在矿井中抽水。
详细地阐述了保持煤矿井下大泵经济运行的途径和方法。
This paper also carefully introduces a way and path to keep economic operation for chief draining pump in coal mine underground.
本实用新型涉及一种矿用注浆泵，尤其是矿井或隧道地层漏洞缝隙封闭处理的注浆泵。
The utility model relates to a mine slip casting pump, in particular to a slip casting pump which is used for the sealing treatment of the gap of the stratum loophole in mines or tunnels.
本实用新型涉及一种矿用注浆泵，尤其是矿井或隧道地层漏洞缝隙封闭处理的注浆泵。
The utility model relates to a mine slip casting pump, in particular to a slip casting pump which is used for the sealing treatment of the gap of the stratum loophole in mines or tunnels.
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