“ultra-precision machining”的概念、定义、翻译、参考文献-科学参考

单词	ultra-precision machining
释义	ultra-precision machining Encyclopedia 工学数字化制造释 ultra-precision machining超精密加工加工尺寸精度达到10纳米，表面粗糙度1纳米，加工的最小尺寸可达1微米的加工工艺。工学超精密加工释 ultra-precision machining超精密加工加工零件的尺寸或形状精度优于100纳米，表面粗糙度Ra小于20纳米的加工技术。
随便看	higher difference higher differential higher differentiation higher dimension higher-dimensional higher-dimensional category higher-dimensional connectedness higher-dimensional geometry higher-dimensional group theory higher-dimensional quasi-conformal mappings higher-dimensional space higher-dimensional surface higher-dimensional theory higher-dimensional variety higher education Higher Education Act 2004 Higher Education Act (U.S.A.) higher education evaluation higher education examination for self-learner Higher Education in Developing World: Changing Contexts and Institutional Responses Higher Education Law of the People's Republic of China Higher Education Management Research Association higher education management system higher education massification Higher Education of Engineering

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