Methods of using the D-decomposition curves to judge whether all the roots of the characteristic equation possess a negative real part are also discussed.
文中也提出了利用分划曲线来判定系统特征方程具有全部负实部根的方法。
In current, we are undeniable, in the real life has part of police well not to use to the society which the country entrusts with has brought some negative influences, has harmed police's good image.
就是在当前，我们不可否认，现实生活中存在着一部分警察没有很好地使用国家所赋予的权力，给社会带来了一些负面的影响，损害了警察的良好形象。
The positive part and negative part of the real roots can be used to judge the stability of the system.
由实部根轨迹的负与正可以判定系统的稳定性。
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