同步滚动 meaning in Chinese

synchronized scrolling

Scanning frequency has reached over 240hz which makes the menu stable and no flicker . in using actually , we use vidicon shoot the display screen . and then we can observe the photo is very clear from the vidicon
2扫描场频达到了240hz以上，画面稳定无闪烁，在实际应用中，用摄像机拍摄显示屏，摄像机中观测到的图象十分清晰，没有同步滚动条，若现场有电视转播，显示屏不会影响转播画面的质量。