产品对象的访问权限管理是PDM中至关重要的内容。
The management of access to product objects is one of the primary aspects in product data management (PDM).
访问权限管理和数据加密是实现计算机数据安全的主要技术手段。
The main technical measures to keep computer data safe are user access management and data encryption.
一些业务需要非常复杂的访问权限管理，例如Digital Rights Management。
Some businesses require highly sophisticated access rights management such as Digital rights management.
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