In this paper, we use the comparison method to discuss the global existence of solutions of a delay-differential system. Some criteria for the global existence of RFDE are given.
本文利用比较方法讨论延滞系统解的整体存在性问题，得出延滞系统解的整体存在性的若干判别准则。
So, it has a practical significance to study the character of solutions of either degenerate differential system with delay or impulsive differential equations with delays.
因此研究退化、脉冲时滞微分方程解的性态具有重要的现实意义。
The differential equation of motion of the system is first transformed to a state-space model with time delay control input.
首先将系统的运动微分方程改写成状态空间模型，其控制输入中存在时滞。
Finally, the stability of a type of time-varying differential system with multi-delay was discussed.
最后，讨论了一类时变多时滞微分系统的稳定性。
Finally, the stability of a type of time-varying differential system with multi-delay was discussed.
最后，讨论了一类时变多时滞微分系统的稳定性。
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