The sufficient and necessary condition for holding the control system robust stability was analyzed in the presence of the process multiplicative uncertainties. 同時(shí)，對于實(shí)際生產(chǎn)過(guò)程中常見(jiàn)的被控過(guò)程乘性不確定性，分析了系統保持魯棒穩定的充要條件。
The modern cityscape results from a controlled process.The authors attempt to study the problem from the view of social solutions and professional solutions. 現代城市景觀(guān)是產(chǎn)生于一個(gè)受控過(guò)程的結果，從城市景觀(guān)控制的社會(huì )對策和專(zhuān)業(yè)對策兩方面試談現代城市景觀(guān)的控制對策。
