通过幂等的定义，给出了两种符号幂等模式矩阵的结构。

Meanwhile, we give two structures of the sign idempotent by the definition of idempotent.

youdao

通过幂等的定义，给出了两种符号幂等模式矩阵的结构。

Meanwhile, we give two structures of the sign idempotent by the definition of idempotent.

youdao