extremal的读音 extremal中文意思

英音  [ɪks'tri:məl] 
美音  [ɪks'tri:məl] 
adj. 极值的
extremal 用法和例句
At first , the extremal control of the system was got , then the reachable region of the time reversed system and the controllable region of the system were given .
首先求取系统极端控制,进而给出时间反转系统的可达区域和系统的可控区域。