数字权利描述语言为权利执行提供了权利描述信息。
Digital rights expression LAN - guage provides basic description information for rights enforcement.
互操作性是数字版权保护系统中核心问题，解决互操作性最关键的是对数字作品的信息和权利做出统一的规范，也就是解决数字权利描述语言的互操作性问题。
Giving the standard specifications of digital works' rights and information is crucial to solve it which is the problem of solving the interoperability of digital rights expression language.
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