time-varying systems的用法和樣例：
例句
- The problem of robust output tracking control for a class of affine nonlinear time-varying systems with mismatched uncertainties is considered.
研究一類(lèi)具有非匹配不確定性的非線(xiàn)性時(shí)變系統的魯棒狀態(tài)反饋輸出跟蹤控制器設計問(wèn)題。 - The accurate mathematical model of WIM is difficult to establish because WIM's parameters change with time when they work.
摘要動(dòng)態(tài)稱(chēng)重系統在測量的過(guò)程中為一時(shí)變系統，難以對稱(chēng)重系統建立精確的數學(xué)模型。
