At the same phase angle, the rotary knife must be immersed in the soil to ensure the working stability and the average 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 crushed soil and ditch after ploughing. The main reason for the flat bottom is that there is no strict requirement for cutting according to the drawings, the process tooling for production and processing is unqualified, and the management system is not perfect.
In the process of one rotation of the cutter shaft, at the same phase angle, a knife must be immersed in the soil to ensure the working stability and the uniform 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 was not cut strictly according to the drawings, the process tooling for production and processing was unqualified, and the management system was not perfect. The industrial and agricultural 12-K walking tractor commonly used in Guangdong Province is equipped with a rotary tiller. A total of 16 blades are installed on the blade shaft. The left and right sides are arranged in a staggered manner. It is used for paddy fields, dry land, etc., especially for the cultivation of vegetable fields. 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.