It shows according to experiments that the watermark cannot be wiped off with the format adjusting, characteristic amending or contents' deleting.
经实验证明，对水印文本进行格式调整、特征修改甚至部分内容删除等操作均不能去除水印。
On the work practicality, the system characteristic, retrieval interface, retrieval method, document output format and download format are discussed.
结合工作实践讨论了该系统的特点、检索界面基本要素、检索方法、文献输出格式和下载方式等。
The type, format and carrier of the filesystem decide the capability and characteristic of the embedded product.
文件系统的类型，格式，载体等特性决定了嵌入式产品的性能和特征。
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