“United States naval observatory time”的概念、定义、翻译、参考文献-科学参考

单词	United States naval observatory time
释义	United States naval observatory time Encyclopedia 工学时间系统释 United States naval observatory time；USNO美国海军天文台时美国海军天文台（USNO）产生和保持的协调世界时（UTC），也是美国国防部的标准时间。
随便看	convex half-space convex hull convex hull algorithm convex hull approximation convex hypersurface convexifiable topological space convexification convex integration convex intersection convexity convexity coefficient convexity condition convexity constraint convexity downward convexity inequality convexity limit convexity modulus convexity problem convexity property convexity radius convexity theorem convexity upward convex kite convex lattice convex lens

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。