“Julian day”的概念、定义、翻译、参考文献-科学参考

单词	Julian day
释义	Julian day Encyclopedia 工学时标释 Julian day儒略日由公元前4713年1月1日，世界时中午12时起算的天数。理学﹝常用单位﹞释 Julian day儒略日一种不用年、月的长期纪日法，简称JD。 Astronomy Julian day儒略日
随便看	frequency modulation and demodulation frequency modulation, FM frequency modulation laser frequency-modulation laser interferometry frequency modulation of hydro-generator unit frequency modulation radar frequency modulation radio frequency modulation screening frequency modulator frequency multiplication frequency multiplier frequency number frequency of access frequency of alternating current frequency of an event frequency of an oscillation frequency of a wave frequency of disease occurrence frequency offset frequency of language constituents frequency of occurrence frequency of operation frequency of samples frequency of urinatior frequency plane

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。