“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	operatic headdress Operatic History in Ming and Qing dynasty operatic inscriptions on steles at Temple of God of Mount Tai , Pu County operatic manuscripts collected by the Huaihua Art Museum operatic manuscripts of Sungu Village of Hu County operatic murals at Temple to the God of Mount Tai of Shanpu Village, Qinyuan County operatic music of China's ethnic minorities Operatic Painting Album operatic paintings in Civil Rights Pictorial operatic paintings in Collection on the Theatre operatic paintings in Huju Opera Pictorial operatic paintings in old Shanghai newspapers operatic paintings in Pictorial Daily operatic paintings in Pictorial from the Touchstone Studio Operatic Paintings of Shen Bochen Operatic Picture Album of the Qing Court Operatic Plays operatic plays collected at Shengping Bureau of Qing Dynasty operatic plays of the Qing court operatic porcelain figurines unearthed at Song tomb of Poyang County operatic sleeveless jacket operatic stele at Lord Guan Temple of Chengguan Town, Ruicheng County Operatic Theory and Practice: A Complete Guide for Beginners operatic woodblock prints of the Qing Dynasty operatic woodblock prints of Xiaojiaochang of Shanghai

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。