After being covered, one should be patient and dare to lock in the warehouse, because of the characteristics of the product, some prices and bottom signals may appear, especially in large cycles such as weekly salesKWhen there is a rebound signal or a bottom signal on the line, it will be very stable. As long as there is a bottom signal in a large cycle, it is necessary to boldly unlock it, constantly buy on dips, increase positions, and once the large cycle rebounds, it can be resolved.