time varying system的用法和樣例：
例句
- The accurate mathematical model of WIM is difficult to establish because WIM's parameters change with time when they work.
摘要動態稱重系統在測量的過程中為一時變系統，難以對稱重系統建立精確的數學模型。 - STF adds multi-fading factors in EKF, thus it has strong tracking capability and good robustness, and can deal with variation parameter system effectively.
強跟蹤濾波在卡爾曼濾波的基礎上引入了多重漸消因子，使強跟蹤濾波具有極強的跟蹤能力和較好地魯棒性，因此可以很好地解決變系統變參數的問題。
