农民盼望新一代拖拉机３０多年来，我国的拖拉机虽几经换代，但无论大中小型，都还有一些不尽人意的地方。农民对拖拉机换代产品有如下要求：一是噪音低。眼下的拖拉机普遍噪音高，不仅机手开上一天受不了，就是发动时也影响左邻右舍的休息与身心健康。希望换代产品在噪音问题 Farmers look forward to a new generation of tractors For more than 30 years, although our tractor after several generations, but both small and medium-sized, there are still some unsatisfactory places. Farmers tractor replacement products have the following requirements: First, low noise. Right now tractor generally high noise, not only can not stand the hand on the day, that is, when the start also affect the neighbors’ rest and physical and mental health. Hope that the replacement of products in the noise