“hr”的概念、定义、翻译、参考文献-科学参考

科学参考收录了103327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。

单词	hr
释义	hr See <<hour>>
随便看	astronomical almanac astronomical atlas astronomical azimuth astronomical bearing astronomical camera astronomical catalogue astronomical clock astronomical constants astronomical coordinate system astronomical date astronomical day astronomical distance astronomical eclipse astronomical ephemeris astronomical equator astronomical instruments astronomical latitude astronomical leveling astronomical longitude astronomical meridian astronomical meridian plane astronomical nutation astronomical observatory astronomical parallel astronomical photography