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。
Disscussed four respects of web art, which is characteristic of the design, basic element, format in web design and aesthetic demand. Summarized theory of the new art design field.
通过对网页设计中的基础元素、版式设计、设计的特点和审美需求四个方面，对这个新的艺术设计领域进行初步的归纳总结和理论探讨。
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。
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