It also makes an exhaustive exposition on two kinds of calculating methods of heatingpiping project quantity.
同时对采暖管道工程量计算的两种方法做了详尽的阐述。
2
The optimal design of heating source and heatingpiping net, and the optimal operation of heating system are imperative.
实现供暖热源、供暖管网的优化设计及整个供暖系统的优化运行势在必行。
3
On the first filling of the hot water heating system or refilling after maintenance, air in the piping and radiation must be removed and the whole system filled with water.