管段流量与终点水温的关系，是热水供应系统中循环泵选择计算研究的一个重要理论依据。
Therefore, this conclusion should be taken into account when we study how to select one circulation pump with reason in a hot-water supply system.
在对天然气管网进行离线数值模拟计算时，需要给各管段分配初始流量，并作为迭代计算的初始值。
When a natural gas network is done off-line numerical simulation, every pipeline needs be distributed initiatory flow as the initiatory value of iterative computation.
管段设计流量的快速计算方法以及建立GIS系统的原则和开发途径。
Additionally, the principles and method of establishing the GIS system are simply introduced.
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