inner angle at turning point 转弯阳角

alternative inner angle 内错角

Inner spiral angle 小端螺旋角

inner angle of humerus 肱骨内角

inner angle of vision 内视角

Inner-angle insert point 角内插点

inner opposite angle [数] 内对角

Inner Angle Difference of Triangle 三角形内角差

inner six angle wrench 内六角扳手