在激光照排机中，成像激光光点的坐标是由水平方向的行扫描和垂直方向的场扫描的同步运动决定的。
In the laser typesetter, the coordinates of the imaging laser points are determined by synchronous movement of row and column scanning motors.
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 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.
应用推荐