统一建模语言，是第三代用来为面向对象开发系统的产品进行说明、可视化和编制文档的方法。
UML (Unified Modeling Language) is the third generation method for the description, visualization and documentation of products of object oriented system development.
实践证明：采用面向对象技术开发产品CAD系统具有明显的优势。
Practice proves that it has obvious privileges developing CAD system using object-oriented technique.
并以汽车减振器为对象，建立分布式产品数据管理系统和面向重用的开发平台。
Using automobile shock absorber as sample, a distributed product data management system and development platform oriented to reuse was built.
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