The special feature of variable rate reaching law is that it is directly proportional to the norm of state vector and can result in a sector-shaped switchingregion.
以变速趋近律为到达条件，可产生扇形切换区，并可期待原点的稳定性。
2
Switching phenomena with an associated negative resistance region have been observed in the current-voltage characteristics of lead oxide film sandwiches.
在氧化铅薄膜三层结构的电流——电压特性中发现了具有负电阻区的开关现象。
3
This makes it possible to minimize, as a function of the specific parameters, both increased wear of the clutch and a required switching time until a slip region of the clutch is reached.