香农扩展即布尔逻辑扩展，是卡诺逻辑化简的反向运算。香农扩展相当于逻辑复制，提高频率；而卡诺逻辑化简相当于资源共享，节约面积-Shannon expansion of Boolean logic or extension, is simply the reverse Carnot logical operations. Shannon expansion is equivalent to the logical replication, increased frequency and simpl