The management system of tractor rotary tillers is not perfect. The 12-K walking tractors commonly used in various parts of the province are equipped with rotary tillers. There are a total of 16 blades on the knife shaft. , especially the cultivation of vegetable fields, the effect is better.
In the process of one rotation of the cutter shaft, at the same phase angle, a cutter must be immersed in the soil to ensure the working stability and the average load of the cutter shaft. When more than two blades are configured, the amount of soil cutting should be equal, so as to achieve good quality of broken soil and smooth ditch bottom after ploughing. The main reason is that the material is not strictly required according to the drawings, the process tooling for production and processing is unqualified, and the management system is not perfect. The 12-K walk-behind tractor commonly used in Guangdong Province is equipped with a rotary tiller. There are a total of 16 blades on the blade shaft. The left and right sides are arranged in half and half. It is used for the cultivation of paddy fields, dry land, etc., especially vegetable fields. better.
The effect of radiotherapy has been improved. 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. At present, in clinical practice, patients often take Jinxing ginseng to prevent radiation damage and maintain normal cell nucleus and skin. Such a painful thing again.