If unidirectional circuits exist in a network, the corresponding ventilation network equilibrium graph can not be plotted.
通风网络中存在单向回路时，将无法绘制其所对应的平衡图。
The simulative calculation method and the results of multi-fan-station ventilation network with unidirectional circuits are described.
介绍含有单向回路的多级机站通风网络的通路模拟算法及其结果。
The simulative calculation method and the results of multi-fan-station ventilation network with unidirectional circuits are described.
通过修改搜索策略，用深度优先搜索法确定通 路的矩阵算法，模拟计算有单向回路的通风网络。
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