1. If the central expansion is carried out after the third trading point, then this expansion will be reflected in the large-scale map, almost all of which are in the form of pen centers, that is, at least three overlaps. However, if it is a central expansion formed by 9-segment shocks, it may not be easy to distinguish on large-scale maps, but it can be roughly judged by MACD indicators. Obviously, the basic MACD will cross the 0 axis more than 3 times.

2. A trend includes at least three secondary trends. Why at least? Because this is the standard that the simplest consolidation trend type must meet.

1) A daily rise has at least six complete 30-minute trend types, which need to meet the needs of two daily centers, which can be connected by gaps. The daily consolidation trend contains at least three complete 30-minute trend types.

2) Of course, define the trend type. Any trend type must contain the center of this level. One center is consolidation trend type, and more than two non-overlapping centers are trend trend type. What you see intuitively on the map is the trend, not the trend type, which is strictly graded!

Read the original text more, and review the lesson of center definition and trend type, which is the basis of later study.