The Archive lets the public upload or download digital material for free.
这个档案馆允许公众免费上传和下载数字材料。
You have to keep your things tidy, up-to-date, and in the case of digital material, backed up.
你需要保持你的东西整洁、持续更新，对数码材料还要备份。
Fingerprinting digital material is an effective means of protecting copyrighted material and digital rights management.
数字指纹技术是数字版权保护的有效措施。
Digital watermarking is a technique which can protect the copyright of multimedia data and prevent digital material from being tampered and distributed unauthorizedly etc.
数字水印是保护数字作品版权，防止数字作品篡改和非法传播等的一门技术。
Digital watermarking is a technique which can protect the copyright of multimedia data and prevent digital material from being tampered and distributed unauthorizedly etc.
数字水印是保护数字作品版权，防止数字作品篡改和非法传播等的一门技术。
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