最后介绍了一种分数阶线性定常系统的稳定性判据。

Finally a stability criterion is introduced for linear non time-varying fractional-order systems.

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世界上较通行的有两种分数制度：原始分制度和标准分制度。

There are two popular score applications in the world:original score and standard score.

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更重要的是，分数不仅是一种教育手段，也是一个筛选系统的一部分，帮助我们把孩子分配到他们的下一个班级或课程。

What's more, grades are not only an educational device but are also part of a screening system to help assign kids to their next class or program.

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