“USNO”的概念、定义、翻译、参考文献-科学参考

单词	USNO
释义	USNO 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。理学天文台释 United States Naval Observatory ; USNO美国海军天文台美国一家天文机构。 Astronomy USNO全称：United States Naval Observatory。美国海军天文台
随便看	railway traffic control railway traffic hygiene quarantine railway traffic volume railway train traction calculation railway transmission network railway transportation railway transportation asset and resource railway transportation cost railway transportation development railway transportation plan railway transportation revenue railway transportation statistics railway transport capacity railway transport enterprise railway transporter for fairing railway transport freight tariff railway transport industry railway transport tariff railway transport vehicle for missile railway tribology railway tunnel maintenance railway unusual-soil subgrade railway video monitoring system railway water pollution prevention and control railway with public welfare characteristics

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。