在此基础上，提出了一个基于多重数字水印的数字版权保护管理系统模型，并介绍了其功能和应用。
On this basis, a solution of digital copyright protection management system is provided, together with its function...
然而，由于苹果公司采用了封闭的、非标准的技术来实施版权保护(被称为数字版权管理)，其成长性受到了局限。
However, because Apple USES closed, non-standard technology for its copy protection (known as Digital Rights Management), the growth is seen as limited.
如果你想要获得保护的内容，你同样需要让Windows媒体数字版权管理访问微软。
If you want access to protected content, you will also have to let the Windows Media Digital Rights Management talk home.
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