1985年大学毕业， 1995年获得高级工程师任职资格，2005年获得工程硕士学位，主要在高速线材生产机械设备领域从事机械工程专业与管理工作。
Li Yan, graduated from university in 1985. qualification of senior engineer, 1995. M. Eng. , 2005. Search in mechanical engineering and management of equipment of high speed wires.
书将对高级和工程的研究生有用，对在技术大学的市民或者机械工程处的架构分析的教授。
The book will be useful to senior and postgraduate students of engineering, to professors of structural analysis at civil or mechanical engineering departments of technical universities.
书将对高级和工程的研究生有用，对在技术大学的市民或者机械工程处的架构分析的教授。
The book will be useful to senior and postgraduate students of engineering, to professors of structural analysis at civil or mechanical engineering departments of technical universities.
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