Taking pivot section and over-direct each section to the first and cut a triangular concave technique.

取定点放射分区，将发片带至第一片修剪三角反曲线层次。

youdao

Taking pivot section and over-direct each section to the first and cut a triangular concave technique.

取定点放射分区，将发片带至第一片修剪三角反曲线层次。

youdao