Adopt gyral zero-finding technology to ensure the correction of detected part and avoid the。dislocation resulted from the stepout of direct drive.

采用回旋找零技术，保测试位置准，避免了因直接驱动步而造成错位。

The city of profusion resembles a gyral magic square, rotational dream and temptation, blindfold letting a person is blurred.

缤市象一个旋转魔方，转动着梦幻与诱惑，让人眩目迷离。