而在交通路网中两个城市之间的最短行车路线就是最短路径问题的一个典型例子。
And in the transportation network of the shortest route between two cities in is a typical example of the shortest path problem.
为了确保铁路线路上的行车安全，及时准确地检测出轨道信号参数是我们亟待解决的问题。
To guarantee the safety of the train moving on these lines, it is necessary to detect the parameters of the track signals properly, precisely and timely.
为了确保铁路线路上的行车安全，及时准确地检测出轨道信号参数是我们亟待解决的问题。
To guarantee the safety of the train moving on these lines, it is necessary to detect the parameters of the track signals properly, precisely and timely.
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