“国际习用原点”的概念、定义、翻译、参考文献-科学参考

单词	国际习用原点
释义	国际习用原点 Encyclopedia 工学地球参考系统释 conventional international origin；CIO国际习用原点为了统一全球地面坐标系统和便于研究极移，1967年国际天文学联合会（IAU）、国际大地测量和地球物理联合会（IUGG）决定采用统一的地极坐标原点，称为国际习用原点。
随便看	ultraparabolic ultraparabolic differential equation ultraparabolic equation ultraparallel lines ultra performance liquid chromatography ultra performance liquid chromatography (UPLC) for pharmaceutical analysis ultraperiodic ultraphosphate ultraphotic rays ultraporcelain ultrapower ultra-precision cutting of single crystal brittle material assisted with ion implantation ultra-precision cutting of surface-modified carbon steel ultra-precision grinding of brittle materials ultra-precision machining ultra-precision machining of optical spherical and freeform surface ultra-precision manufacturing of optical surfaces ultra-precision mechatronics system ultra-precision opto-mechanical system ultraproduct ultraproduct technique ultraproduct theorem ultra-pure materials ultrapure water ultrapurification of materials

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。