watersupply

Watersupply and drainage engineering is sorted out engineering discipline, and it is a field of intercross multi-discipline.

摘排工程为工程学科门，是多学科互相交叉形成的一门学科。

Water supply corporations is feazed by redwater even blackwater, users rebel for that, they even have suspicious with the watersupply corporations.

红、黑现象经常困扰各市的供企业，对此用户十分反感，甚至对自来的信誉产生了质疑。