1·In north China, thermoelectric power station is often selected to build. And the pithead power plant is more economical, but the water source must be solved firstly.
我国北方地区主要建火力发电厂，建坑口电站更为经济节约，但建坑口电厂必须要解决水源问题。
2·The thermoelectric cogeneration plant, public pipeline and sewage treatment plant with a daily processing capacity of 280 thousand cubic meters have been put into production.
热电联供厂、公共管廊和日处理量28万立方米的污水处理厂已建成投产。