1.Then the decimal base which is composed by74LS90 and 74LS08 and senary counting circuit.

1.然后又由74LS9074LS08组成十制制计数电路。

2.And the cost of computing is much less than senary triangular B-B patches.

2.种方法在保证情况下计算量较之次B-B曲面片有较大减少。