When a number of certain static images, such as geometric figures, for example, interchange with a specified frequency, it creates something like a motion picture effect.
当一组特定的静态图像，例如几何图形，以指定的频率切换，便会产生某种动态图片的效果。
2
While traditional ultrasound uses high-frequency sound waves to create a picture of what is going on it the body, elastrography goes a step further by gauging movement.
传统的超声应用高频率声波创建持续于人体中的图像，而弹性超声通过精确测量移动更进一步。
3
Through, analysing several examples, a complete picture of frequency characteristic will be seen, it is beneficial to understand and grasp the fundamental concept of the series resonance.