“second”的概念、定义、翻译、参考文献-科学参考

单词	second
释义	second Encyclopedia 工学〔SI基本单位〕释 second秒国际单位制（SI）中的时间单位。符号s。当铯频率ΔνCs，也就是铯-133原子不受干扰的基态超精细跃迁频率，以单位Hz即s-1表示时，将其固定数值取为9192631770来定义秒。 Physics second①秒 ②第二 Mathematics second第二的；其次；秒 Astronomy second秒
随便看	Wess Zumino model Wess-Zumino model West west West Africa West African Countries and Peoples West African Economic and Monetary Union West African Economic Community West African Monetary Union West African Rice Development Association West African Students' Union West African Youth League West Africa Police Information System west africa rift system west Antarctica Westar West Asia west Australian current West Bengal Pradesh Westbury court garden West-Centered theory West China Metropolis Daily West China Union University West China Union University Museum West Church

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。