A sequence of instructions that cannot be executed during normal processing. 正常處理過程中不執行的指令序列。
The principal role of synchronization is to prevent undesirable or unanticipated interference between simultaneously executing instruction sequences. 同步的主要作用是，阻止可能在同時執行的指令序列間引起問題，或結果不可預料的交互行為。
An approximate optimal disturbances rejection control law is obtained by intercepting a finite iterative result of optimal control law sequence. 通過截取最優控制序列的有限次逼近值，可以得到非線性互聯大系統近似最優擾動抑制控制律。
