The source of this project is the national key science and research item assumed by the institute of aviation and avigation materials.
本文的研究内容以北京航空航天材料研究所委托沈阳自动化所承担的国家重点科研项目为背景。
The source of this project is the national key science and research item assumed by the institute of aviation and avigation materials.
本文的研究内容以北京航空航天材料研究所委托沈阳自动化所承担的国家重点科研项目为背景。
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