Choose a low point: choose the right low point pair to achieve the first goal, if not the first goal, choose a low point.

Choose a high point: if you choose the right high point, you can reach the first goal. If you don't reach the first goal, choose a high point.

Shorter: shorter, usually better.

Short position Interception: it is difficult for shorts and interceptions to cross the high point.

Short position Long multi-price: short and long multi-price appear at the same time, just like short, uncertain.

Short position Multi-price: Short and multi-price appear at the same time, with different positions, empty high points and many low points.

Average ratio of outer disk: the average ratio of outer disk is normal, the average ratio of outer disk is greater than that of outer disk, and the outer disk is empty.