一、绪言用低速犁进行高速耕作,则土垡向已耕地方向飞散增大,作业质量下降而牵引阻力又随之而显著增大。因而,为了使日本的低速犁使之高速化,有必要设计高速犁体曲面,使土垡移动和低速时一样。即在高速化的情况下,也应保证具有良好的 I. Introduction Low-speed plow for high-speed farming, the soil to the direction of farmland flying scattered increases, the decline in work quality and traction resistance has also increased significantly. Therefore, in order to speed up the low-speed plow in Japan, it is necessary to design a high-speed plow surface so that the soil can move at a low speed. That is, in the case of high speed, should also be guaranteed with good