“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	diffeomorphic diffeomorphic image diffeomorphic manifold diffeomorphic mapping diffeomorphic orbit diffeomorphic space diffeomorphic structure diffeomorphism diffeotopic diffeotopic embedding diffeotopy difference difference algebra difference analog difference approximation difference base difference between injection and production pressures difference boundary-value problem difference bundle difference cochain difference cocycle difference coefficient difference cokernel difference correction difference-cover

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