secondary pollution in water supply的意思|示意

Improving the efficiency of flushing of barometric pulse method, it has the important theoretical and practical significance to reduce secondary pollution in water supply network.

提高气压脉冲法的冲洗效率，对减少管网水质的二次污染有重要的理论和实际意义。

This will save water, energy and secondary water pollution control and other aspects of water supply and drainage design in the environment.

本文将从节水、节能和二次供水的污染防治等几个方面探讨建筑给排水设计中的环保问题。