利用多次垂直扫描来重显一幅完整图象的扫描技术。电视中使用2：1的交错率，即每帧分两场，垂直扫描两次，一场扫描奇数行，另一场扫描偶数行。
In scanning, the technique of using more than one vertical scan to reproduce a complete image. In television, 2:1 interlace is used, giving two vertical scans(fields) per frame; one field scans odd lines, and one field scans the even lines of the frame.
在IBM的令牌环型网络中，一帧信息在向目的地传送路径上所通过的桥接器个数。
In the IBM Token-Ring Network, the number of bridges through which a frame passes on the way to its destination.
那帧照片完全不像他。
The picture is quite unlike him.
帧电视传送的一个完整图象全部的面积
The total area of a complete picture in television broadcasting.
