The management system of rotary tillers in Liaoning is not perfect. The 12-K walk-behind tractors commonly used by workers and peasants in various parts of the province are equipped with rotary tillers. There are 16 blades on the knife shaft. , especially the cultivation of vegetable fields, the effect is better.
The process of supply recovery will be very slow. According to estimates, it is estimated that the resolution of port problems will require at least half a year. Since the epidemic, container freight rates have continued to rise. As of early January 2022, the SCFI composite index has increased by nearly 400% compared with the beginning of 2020. In terms of rhythm, the increase in freight rates can be divided into two stages. The first stage is a single increase in the Asia-North America route.
On this basis, the "Intensity Modulated Precise Radiation Therapy Planning System" independently developed by the team has achieved precision control with a dose error of less than 2% and sub-millimeter tumor localization. This technology can greatly improve the accuracy of radiotherapy. At the same time, it can reduce the radiation damage of patients. Now, in clinical practice, patients often take Jinxing ginseng to avoid radiation damage and maintain normal cell nucleus and skin. Such a painful job again.