bending in two planes
sự uốn cong trong hai mặt phẳng
bending in two planes, bend-over, bowing, crock, crooking, curve, curving, deflection, flexion, incuration, inflexion, sinuosity
sự uốn cong trong hai mặt phẳng
bending in two planes
sự uốn cong trong hai mặt phẳng