“氢钟”的概念、定义、翻译、参考文献-科学参考

单词	氢钟
释义	氢钟 Encyclopedia 工学频率标准释 hydrogen maser氢钟以氢原子基态两个超精细能级间跃迁频率为参考（频率为1.420405751786吉赫兹），通过锁定环路来锁定晶体振荡器，使晶体振荡器能够输出高稳定度和高准确度时间频率信号的原子钟。氢钟采用的工作原子为氢原子，又称氢原子频率标准（简称氢频标）、氢原子钟。 Physics 原子、分子物理学 hydrogen clock氢钟 Astronomy hydrogen clock氢钟
随便看	Supplement to Precious Mirror of Painting Supplement to Record of Collection in Sight Supplement to Tales of the Obscure and Peculiar Supplement to the Catalogue with Critical Abstracts of the Complete Opera Collection Supplement to the Extension of the Materia Medica Supplement to The Grand Compendium of Materia Medica Supplement to the Record of Painters in Yushan Supplement to the Records of Qixie Supplement to the Taoist Canon of the Zhuangchen and Lin Families Supplement to the Twenty-five Histories Supplement to Treatise on Calligraphic Manual supplier supplier development supplier efficiency supplier-induced demand supplier management Supplier Performance Evaluation supplier relationship management Supplier Selection supplier to business to consumer supply supply and demand balance conditions of urban land supply and demand balancemechanism of urban land supply and demand balance of land market supply and demand balance of resources

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。