ZLJC: the white line is the short-term main operation trajectory, the yellow line is the medium-term main operation trajectory, and the red line is the long-term main operation trajectory. The white line of the main entry and exit indicators breaks through the yellow line and the red line upwards, and the three lines diverge upwards, indicating that the main force effectively controls the market, can intervene on dips, and holds shares to be increased. The green line of the main entry and exit indicators rose too fast and far away from the yellow and red lines, showing a big deviation, indicating that there are more short-term profit chips, so attention should be paid to controlling risks and selling them appropriately. When the white line falls back to the yellow and red lines, and the yellow and red lines diverge upwards, it means that the upward trend has not changed. The previous stock price decline is only a callback on the way, which can be followed up appropriately. The main force in and out of the third line "death cross", the handicap is short, investors should be out as soon as possible. When the third line of the main force in and out is close and parallel downward, it shows that the main force has not yet entered the market or is shipping, so it is not appropriate to intervene at this time.

improvement, which can be translated as improve in English, refers to removing some shortcomings of things to make them more suitable for requirements or improvement. Get rid of some shortcomings of things and make them more suitable for requirements. Chapter 13 of Xin Bu of Kang Youwei's Book of Great Harmony: "At that time, what was taught in the school was always discussed and improved, which is really beyond today's discussion." Wu Yuzhang's On the Revolution of 1911: "The earliest bourgeois politicians in China, such as Kang Youwei and Liang Qichao, once thought that this kind of reform could also be done in other ways than revolution, such as the Japanese way, that is, relying on the government to adopt some improved ways." Act III of Mao Dun's Before and After the Qingming Festival: "She advocates saving materials, reducing costs, adding refined technology and improving products."