一、发展趋势国外中耕作业机械化程度较高,其发展趋势有以下特点:1、向宽幅高效发展在苏联和欧美一些国家,中耕作业机械与其它作业机具一样,总的发展趋势是为了提高生产率,从而大力发展大功率、高效率的机具。一般都采取提高作业速 First, the development trend High degree of mechanization of foreign cultivation work, the development trend has the following characteristics: 1, to the wide and efficient development In some countries in the Soviet Union and Europe and the United States, as with other operating machinery, the general trend of development is to increase productivity , So as to vigorously develop high-power, high-efficiency equipment. Generally take to improve operating speed