extremal
                                                    英 [ɪks'tri:məl]
                                                                        美 [ɪks'tri:məl]
                        
                
                
                
                
                    
                                                                                                                        extremal 双语例句
                
                
                    
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。