In the four-hour level line of ETH, the Bollinger Bands are running slightly open, the K line is running above the middle track, the MACD double lines are crossing upward, and the long energy column is running in a shrinking volume. In the one-hour level line, the Bollinger Bands are running in a shrinking position, the K line is running near the lower track, the MACD double lines are crossing downward, and the short energy column is running in a shrinking volume. The intraday operation idea is mainly to pull back to a low level.