充分条件

The impedance formula of RL-C parallel resonance circuit is deduced theoretically, and some properties of resonance characteristic curve are analysed.

从理论上导出了RL－C并联谐振电路的阻抗公式，由此分析谐振特性曲线性质，并得出文献中引用的RL－C谐振特性曲线成立的充分条件

Based on these and by the theories and methods of parametric programming, nonsmooth analysis and nonlinear analysis, the necessary and sufficient optimality conditions of cone efficient solutions for the model were obtained.

利用参数规划、非光滑分析和非线性分析的理论和方法，获得了模型锥有效解存在的最优必要条件和充分条件。

Chapter 2, we investigate the existence of multiple positive solutions of the neutral partial difference equations on the base of the existed results of partial difference and difference equations, and obtain some sufficient conditions for the existence of multiple positive solutions.

第二章，基于已有的偏差分方程和差分方程的结果，我们研究了高阶非线性中立型偏差分方程多正解的存在性问题，建立了判断多正解存在的充分条件，对前人的结果进行推广。

A Sufficient Condition of {f} Which is Dense in the Range of Periodic Function fx

周期函数数列{f}稠密于值域的一个充分条件

In chapter3 of this article, We will concentrate on the existence of periodic orbit when thecondition that enables the global attractivity is destroyed.

本文中，在不满足他们给出的充分条件下，我们分析了系统解的动力学性质。

By using the method of coincidence degree, a set of easily verifiable sufficient conditions are established for the existence of positive periodic solution of this system.

利用重合度理论的延拓定理讨论了此系统周期解的存在性问题，得到了保证周期解存在的充分条件。

In this paper, the existence of the periodic solution for two classes of piecewise symmetric systems is studied, and the certain sufficient conditions for the existence of the corresponding systems are obtained.

本文研究了两类分段对称系统周期解的存在性，得到了系统相应的周期解存在的充分条件。

Which guarantee the existence and uniqueness of periodic and almost periodic solutions of the system.

从而给出了保证系统存在惟一周期和概周期解的一组充分条件。

The existence of positive periodic solutions of this system is established by using coincidence degree theory.

利用重合度理论得到了该系统正周期解存在的充分条件。来源：ABC79论文网www.abclunwen.com

Under the condition of vanishing perturbation, a sufficient condition of the stability of the system is derived.

然后在零扰动情况下，给出了扰动非线性切换系统稳定的充分条件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。