time-varying feedback的用法和樣例：
例句
- Robust output feedback stabilization was studied of uncertain discrete systems with a certain kind of norm-bounded time-varying uncertainty.
摘要研究了一類具有范數有界時變不確定性的不確定離散系統的輸出反饋魯棒鎮定問題。 - The output-feedback adaptive control problem was investigated for a class of stochastic nonlinear time varying delay systems driven by stochastic noise of unknown covariance.
摘要針對隨機雜訊具有未知協方差的一類隨機非線性時變滯系統，研究了輸出反饋自適應控制問題。
