对枝状管网分配初始流量和初始压力降，从而初选管径。

For branch network, initial flow and initial pressure drop are distributed, and initial pipe diameters are selected.

youdao

对枝状管网分配初始流量和初始压力降，从而初选管径。

For branch network, initial flow and initial pressure drop are distributed, and initial pipe diameters are selected.

youdao