After the concept of User Correlative Degree (UCD) is presented, the development and implementation of PDM are classified into three kinds according to different modules and UCDs.
提出了用户相关度的概念，并基于模块化设计原则与用户相关度概念，对PD M开发与实施进行了模块划分与不同相关度分类。
This software system offers correlative experience for the development of three-dimensional Geological Modeling of the same type.
软件系统为同类型的三维地学建模软件开发提供了相关的经验。
Taking the sending mechanism of the precision shearing machine as the research object, the virtual environment of product development and correlative technology is studied.
以剪切设备的送料机构为研究对象，探讨产品虚拟开发的灵境环境和相关技术。
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