为了展示3d全帧图像，就需要非常高的帧率，所以通常电视须具备240 - Hz的刷新频率。

In order to display a full-frame image in 3-d, you need an extremely high frame rate, so usually the TV must be capable of a 240-hz refresh rate.

youdao

这个问题产生的根源在于，按照每秒24帧的速度拍摄的胶片，需要被调整到与电视机每秒60帧，120帧甚至240帧的刷新频率相适应。

The source of the problem is the way film shot at 24 frames a second has to adjust to the television's much higher refresh rate of 60, 120 or even 240 frames a second.

youdao

各国的电视扫描制式不尽相同，在中国是每秒25帧，每帧625行。

National television scanning system is different, in China is 25 frames per second, each frame of 625 lines.

youdao