本文的结果是该问题在加工时间扰动下最优调度具有区间摄动鲁棒性的三个充分必要条件。
The results are three if and only if conditions under which an optimal schedule is of interval perturbation robustness.
仿真结果表明，该控制系统能有效抑制系统参数摄动引起的扰动和持续的外激力干扰，增强了系统的鲁棒性。
The simulation results show that this controller can effectively restrain the disturbance derived from the parameter variety and external force, the control system is robust.
摄动理论显示，对于特征方程系数的小幅度扰动即可导致根的大幅度变化。
Perturbation theory indicates that small perturbation of the coefficients could lead to the big perturbation of the root.
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