The article describes how to protect the technological measure and copyright management information too.
同时探讨了技术措施和权利管理信息的保护问题。
The title of a scientific and technological paper serves as the primary information for retrieval.
科技文献的标题为科技人员检索文件时提供首要的信息。
The title of a scientific and technological paper serves as the primary information for retrieval.
科技文献的标题为科技人员检索文件时提供首要的信息。
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