せん断 刈 剪断 剪毛 採毛 翦断
a deformation of an object in which parallel planes remain parallel but are shifted in a direction parallel to themselves
平行な面が平行を維持しようとするが方向平面に変えられる物体の変形
the shear changed the quadrilateral into a parallelogram
せん断して四辺形を平行四辺形にした