angle of extreme position极位夹角

angle of limiting position极位夹角

angle between lines of position位置线交角

included angle of limit position极位夹角

included angle of extreme position极位夹角

position angle of plough body[农机] 犁体配置角

position angle of principal plane主平面方位角

position angle of bent line弯折线位置角

position angle of plough bodies犁体配置角