“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	Nanjing High-Tech Industrial Development Zone Nanjing History Museum of the Ming City Wall Nanjing Hydraulic Research Institute Nanjing Incident of 1927 Nanjing Institute of Astronomical Optics & Technology nanjing institute of environmental sciences,ministry of ecology and environment Nanjing Institute of Geography & Limnology,Chinese Academy of Sciences Nanjing Jiangbei New Area Nanjing Jiangnan Theatre Nanjing Jingji Jishu Kaifaqu Nanjing Lao Shan National Forest Park Nanjing Library Nanjing Lu Nanjing Lukou International Airport Nanjing military region Nanjing Military Region Political Department Frontline Drama Troupe of the CPLA Nanjing Multi-dimensional Rockery Pavilion NanJing Municipal Archives Nanjing Museum of Paleontology Nanjing National Government Nanjing Olympic Museum Nanjing Olympic Sports Center Nanjing Photography Society Nanjing Provisional Government Nanjing Provisional Government off ical system

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