“francium”的概念、定义、翻译、参考文献-科学参考

单词	francium
释义	francium Encyclopedia 理学放射性元素释 francium钫天然放射性元素，元素符号Fr，原子序数87，半衰期最长的同位素的质量数223，属周期系ⅠA族，碱金属元素。为纪念发现者M.佩雷[注]的祖国法国（France）而命名。 Astronomy francium缩写：Fr。钫 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 francium钫
随便看	photon lifetime of passive resonator photon mapping photon mapping method photon-neutron source photon noise photon number photon number squeezed state photon-number squeezed state photon number state photon orbital angular momentum multiplexing transmission system，POAMMTS photon-phonon collision photon-photon absorption photon-photon scattering photon pressure force photon production photon recoil effect photon rocket photon scanning tunneling microscope photon scanning tunneling microscope, PSTM photon scanning tunnel microscope photon scattering photon sieve photon sieve telescope photon sphere photon state

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。