“框”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	框
释义	请查阅块--框
随便看	photon echo photon effect photon effect photonegative effect photon emission photon emission curve photon emission spectrum photon emitter photon energy photon energy photon equilibrium state photoneutron photoneutron photoneutron photoneutron photoneutron photoneutron cross section photoneutron emission photoneutron logging photoneutron source photon excitation photon excitation X-ray fluorescence analysis photon-excited X-ray fluorescence analysis photon flux photon free length