“贝塞尔日数”的概念、定义、翻译、参考文献-科学参考

单词	贝塞尔日数
释义	贝塞尔日数 Encyclopedia 理学天文年历释 Besselian day numbers贝塞尔日数从贝塞尔年首（也即光行差改正后的平太阳赤经等于280°的时刻）恒星的平位置（）变换到恒星视位置（）时所用到的一组参数。 Astronomy Besselian day number贝塞尔日数
随便看	rock mass rock mass classification rockmass classification of dam foundation rock mass damage rock mass deformation rock mass deformation experiment rock mass deformation in dam foundation rock mass deformation stability in dam foundation rock mass evaluation rock mass failure rock mass measurement technique Rock mass parameters inversion analysis theory rock mass quality rock mass quality classification for dam foundation rock mass rating rock mass reinforcement rock mass seepage mechanics rock mass sliding stability in dam foundation rock mass stability rock mass strength rock mass strength experiment rock mass structure cybernetics rock mass support and reinforcement theory rock mechanics rock mechanics experiment

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。