免耕旋播机
no-tillage fertilizing planter
multifunctional spin-seeder
长螺旋旋喷水泥土桩
long auger rotary-jet mixing soil-cement pile
船式旋耕埋草机
Rotary tillage and stubble-mulch
磁旋旋光性物质
magnetically active substance
环面螺旋旋转变换
Torus screw rotation transformation
灭茬旋耕机
corn stubble-cleaning rotary cultivation
逆转旋耕
reverse rotational rototilling
潜士逆转旋耕刀
submerged reverse-rotary tiller
浅旋耕覆盖稻草
Shallow tillage with rice straw covering