Image communication, code can be used to inhibit the static image jitter; enable digital transmission system for all digital information is transparent.
在图像通信中，扰码可以很好地抑制静态图像的抖动，能使数字传输系统对各种数字信息具有透明性。
2
The security configure of server make sure the examination system well run and the program code safety, and it inhibit some users to destroy the examination system through illegal ways.