During the rotation of the knife shaft, a knife must be immersed in the soil at the same phase angle to ensure the working stability and the uniform load of the knife 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 was not cut strictly according to the requirements of the drawings, and the process tooling for production processing was unqualified.
The management system is not perfect. The 12-K walk-behind tractor commonly used in various parts of the province is equipped with a rotary cultivator. There are 16 blades on the blade shaft. The left and right sides are arranged in half staggered. farming, the effect is better.
The effect of radiotherapy has been improved. On this basis, the "Intensity Modulated Precise Radiation Therapy Plan 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 avoid radiation damage and maintain normal cell nucleus and skin. Such a painful thing again.