为第一目标
As the primary goal
以上为机器翻译结果，长、整句建议使用 人工翻译 。
文中建立了以最小换乘次数为第一目标，最小途经站数为第二目标的公交出行最优路径模型。
A model of optimum route with the minimal transfer times as primary goal and the minimal stops as second goal was built.
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