viscous instability是什么意思

用法例句

Aiming at the practical time-delay factors,the analysis of time-delay stability of robust PID vibration control system was carried out and the maximum time-delay of the stable system was obtained.

考虑到实际系统中存在的时滞因素,对设计出的鲁棒PID控制系统进行了时滞稳定性分析,得出了使系统稳定的最大时滞量。

Predictive PID control for several kinds of unstable plus time delay processes;

几种不稳定滞后对象的预测PID控制