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.
在对热水加热系统进行首次进水或维护后在进水，管道和散热器内的空气必须被排除出来，整个系统必须用水充满。
Introduces the cooling and heating sources and piping system for air - conditioning system in modern villa with analysis on energy saving in air - conditioning operation.
本文介绍了一种高级别墅空调系统的冷热源型式，管路分布等。
The optimal design of heating source and heating piping 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。
Finally adjusting every the soda water piping calculates, and fix piping parameter and every pipe's fixing up means in the system, and works the overall heating power system.
最后对各汽水管道进行计算，确定出管道参数以及系统中各管道的布置方式，拟定出全面性热力系统。
Finally adjusting every the soda water piping calculates, and fix piping parameter and every pipe's fixing up means in the system, and works the overall heating power system.
最后对各汽水管道进行计算，确定出管道参数以及系统中各管道的布置方式，拟定出全面性热力系统。
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