实际上这种转变是工程设计人员把自身所掌握的机械设计理论和一些宝贵的工程实践经验知识结合起来，通过软件进行知识表达的一个过程。
In fact this change is a process of their own engineers combining mechanical design theory with some valuable experience and knowledge and presenting it through software.
实际上这种转变是工程设计人员把自身所掌握的机械设计理论和一些宝贵的工程实践经验知识结合起来，通过软件进行知识表达的一个过程。
In fact this change is a process of their own engineers combining mechanical design theory with some valuable experience and knowledge and presenting it through software.
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