Because each NTSC field is a snapshot of activity occurring at 1/60 second intervals, a video frame consists of two temporally different fields.是什么意思_Because each NTSC field is a snapshot of activity occurring at 1/60 second intervals, a video frame consists of two temporally different fields.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句