短语词组短語barrel l distortion 桶形失真;桶形畸變barrel and pincushion distortion 狀和枕狀變型horizontal barrel distortion 水平桶形失真barrel & pincushion distortion 何謂桶狀和枕狀形變vertical barrel distortion 垂直桶形畸變;垂直桶形失真 返回 barrel distortion