Define traffic density as, where is length of the road segment. Equation (1) can now be written in terms of density.

写定义交通密度，哪里是公路段的长度。方程(1)现在可以用密度来书。

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The investigation on difference equation is to discuss its eventually behavior of the solutions, including oscillation, cycle length and global asymptotic stability, etc.

对差分方程的研究就是讨论它的解的最终性态，包括振动性、循环长度及全局渐近稳定性等。

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The relationship can be expressed by a linear equation of winding length and thickness versus drape behavior.

织物弯曲长度、 厚度等与织物悬垂性可以线性方程表达。

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