Large public swimming pool applies inverse-flow-style cyclingwater supply system.
对于公用性大型泳池采用逆流式循环给水系统;
2
He article mainly introduces the application based on the PLC and Frequency conversion timing control system in use of the cyclingwater automation renovation system in the heat and power plant.
介绍了一种基于PLC与变频调速的控制系统在水系统自动化改造中的应用。
3
Agricultural pollution has a tridimension character of the complicated cyclingsystem composed of water, soil, biosystem and atmosphere.