angle between lines of position 位置线交角

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

angle of extreme position 极位夹角

angle of limiting position 极位夹角

included angle of limit position 极位夹角

included angle of extreme position 极位夹角

angle of gun-fire position 炮瞄角

position angle of bent line 弯折线位置角

position angle of plough bodies 犁体配置角