路由选择采用K条最短路径算法进行，备选路由集中首选最佳路由时考虑链路的代价、跳数和每一个链路上不可用波长数。
We adopt K shortest paths into routing and choose the best route in them considering link costs, links hops and the number of noutilized wavelength in a link.
依据网络流理论，选取最短路径算法模型，实现医疗后送最佳路径选择这一辅助决策功能。
According to the theory of flow of network, using shortest path arithmetic model, aided decision system function of best path choice was realized.
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