而在市政供水管网中，则很难得到一条确定的管路特性曲线。
The municipal water supply networks, is very difficult to determine the line of a curve.
通过水泵运行特性曲线，对新建矿井的供水系统水泵容量配备进行理论分析。
Circulate the characteristic graph through the water pump, to carry on the theories analysis of the water supply system water pump capacity equipment of the new mineral well.
本文首先根据供水系统的管阻特性曲线和水泵扬程特性曲线，分析了恒压供水的原理；
This paper explained the principle of constant-pressure water supply on the basis of characteristic curve of pipeline resistance and water pump head.
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