Railway traffic control is a complicated and ill-structured problem.

铁路行车调度问题是一个复杂的劣构问题。

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So, it is very important to understand physics problem-solving instruction correctly and to seek a sort of equilibrium between the well-structured problem and the ill-structured problem.

因此，正确理解物理问题解决，在结构良好问题与结构不良问题之间寻求一种平衡则是十分重要的。

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In this way we can solute ill-structured goal programming problem and think about priority class and the constraint values that are changing with the environment.

这样就可以解决目标规划中的结构不良的问题和考虑目标函数中的优先等级及右端值等随环境变化的情况。

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