picture scanning frequency

例句：

1. 1. The camera's picture scanning frequency is 30 frames per second, which is quitefast.
   相机的扫描频率为每秒30帧，相当快。
2. 2. The scanner's picture scanning frequency is 600 lines per minute, which is veryhigh.
   扫描仪的扫描频率为每分钟600线，非常高。
3. 3. The image processing software can adjust the picture scanning frequency according to the user's needs.
   图像处理软件可以根据用户的需求调整扫描频率。