scanning hole meaning in Hindi

Examples

1. The high speed CRT or laser television image would create a circle with all the 3D pixels for each point of the image . For the hole, LCDs or alternatively a mechanical method capable of creating a scanning hole I have thought of ( thousands of times better than the nipcow disk in terms of space to image size and definition ) would provide the " hole " which would only have to scan at NORMAL television refresh rates.