As a special mark of river city, Yellow Crane Tower is connected tightly with its surroundings. In other words, its beauty can not be independent of its natural setting.
黄鹤楼作为江城的特殊标志，是与其周围的环境紧密相连的。换句话说，楼的美离不开它的自然环境。
It can provide effective protection for digital media forgery, falsification, authentication, security and intactness by embedding a special mark (digital watermark) into the multimedia data.
它主要通过在媒体信息中嵌入标记信号(数字水印)，为媒体信息在防伪、防篡改、认证、保障数据安全和完整性等方面提供有效的技术手段。
A fluorescent layer arranged in the inner part can play the navigational function, and the color can be changed as a special mark.
其内部的荧光层，可起到导航的作用；还可改变其颜色作为专用标志之用。
A fluorescent layer arranged in the inner part can play the navigational function, and the color can be changed as a special mark.
其内部的荧光层，可起到导航的作用；还可改变其颜色作为专用标志之用。
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