释义
a technique for narrowing the aspect ratio of a widescreen film to fit the squarer shape of a television screen by continuously selecting the portion of the original picture with the most significance, rather than just the middle portion
全景与扫描（一种缩小宽银幕电影的纵横比以适合电视机方形屏幕的技术，方法是不断地选取原图像中最有效的部分，而不仅是中间部分）。