将组合逻辑系统地分割，并在各个部分之间插入寄存器，并暂存中间数据的方法。 将一个大操作分解成若干的小操作，每一步小操作的时间较小，所以能提高频率，各小操作能并行执行，所以能提高数据吞吐率。(A method to divide the combined logical system into a register and temporarily store the intermediate data between the parts. A large operation is decomp