在数据保密学中，通过合法访问数据的进程将数据传输给未授权的用户的过程。
In data security, the transmission of data to unauthorized users by processes with legitimate access to data.
滚动码技术是一种使数据传输具有极高保密性加解密技术，且每次传输的代码都是唯一的。
The hopping code technology is an encryption and decryption technique that data transfer is of high security, and the hopping code mechanism makes each transmission unique.
因为本系统只传送数据挖掘的中间结果，所以大大减少了网络的数据传输量，并加强了数据的安全性和保密性。
Because this system only transfer the middle results of data mining, it reduces the transferred data greatly and strengths the security and privacy of the data.
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