水印

A bisynchronous approach was proposed for audio watermarking.The bisynchronous process consisted of self-synchronization and additive synchronization.

摘要在印技术中提出了一种双同步方法，包括了自同步和外同步两个环节。

Due to not modifying any digital data in original image, resolved the traditional problem between robust and imperceptivity or security.

该方案不对原始图像数据作任何修改，使得传统意义印的稳健性、安全性和不可感知性间的矛盾用一种特殊的方法得到了解决。

SOL 170 is a solvent based impregnator especially formulated to protect marbles, granites and natural stones from water and dirtpenetration, frost damage and to stop calcareous efflorescence.

SOL 170 是一种特别透性配方的防剂，有效于保护大理石、花岗岩、天然石材等。防止印及呈现于石材表面，并可防止入表面、冰霜侵入及防止风化。