求翻译：通过研究，论文搭建了以PDM为核心的技术数据管理平台，涵盖质量、技术、知识等三大类数据，引入了技术文档的电子审批机制，从系统的角度进一步规范了技术管理制度，技术文档的版本实现了自动控制，通过对系统内用户的多级定义，数据的安全性得到了保障。此外，管理平台还封装了MS OFFICE，AUTOCAD、CAXA、UG、PDF等模块。是什么意思？

Through research, the paper built to PDM data management as the core technology platform, covering quality, technology, knowledge of the three major categories of data, the introduction of electronic technical documentation approval mechanism, from the perspective of the system to further standardiz

Through research, thesis have erected to PDM as the core technology of Data Management Platform, covering quality, technical, as well as the knowledge, it introduced the 3 major categories of data technical documentation from the system, the electronic approval mechanism to further regulate the angl

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Through research, papers set the PDM data management as the core technology platform, cover three broad categories, including data quality, technology, knowledge, introduced the technology of electronic document vetting mechanism, further standardized the technical management system from a system pe

Through the research, the paper has built as the core engineering data manages the platform take PDM, the covering quality, the technology, the knowledge and so on three big kind of data, has introduced the technical documents electronic examination and approval mechanism, from the system angle furt