watermark是什么意思？

watermark

例句

• The digital watermark is to prevent pirating. 数码水印图案是用来防止盗版的.
• Use your existing Watermark Sensor with WatchDog Weather Stations and Data Loggers. 水迹适配器利用现有的水印传感器与气象监视器和数据采集器一起使用.
• Designed three mentally densest key, uses to define the watermark and the position that it imbed. 设计了3个混沌密钥, 用来定义水印及其嵌入的位置.
• Experimentation shows that this watermark algorithm has good concealment and frangibility. 试验表明,该水印算法有很好的隐蔽性和脆弱性.
• The watermark on the banknote is to prevent forgery. 钞票上的浮水印是用来防止伪造的.