“步天歌”的概念、定义、翻译、参考文献-科学参考

单词	步天歌
释义	步天歌 Encyclopedia 理学﹝天文学名著﹞释 Bu Tiange《步天歌》用诗歌形式介绍全天星官的一部天文学著作。又称《丹元子步天歌》。 Astronomy Song of Pacing the Heavens步天歌
随便看	directional variation directional view directional well tool direction angle direction bias direction bias sampling method direction coefficient direction cone direction constancy direction correction of Gauss projection direction cosine direction cosine algorithm direction curve direction density Direction des Archives de France Direction des constructions Aeronautiquue direction-determining board direction field direction finder direction finding receiver direction focusing directionless directionlet transform direction logarithm direction of arrival estimation

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。