After a long-term decline in the stock price, the six waterfall wires began to be leveled at the bottom, and the short-period lines of A 1, A2 and A3 successively crossed the long-period lines of A4, A5 and A6, until the six waterfall wires diverged upward at the same time, and A 1, A2, A3, A4, A5 and A6 were arranged in multiple positions. As long as the sixth line does not become short, it will be firmly held.