From the conception of X ray diffraction of electrons in an atom, the mathematical expression of X ray diffraction for an atom in a crystal cell is given.是什么意思_From the conception of X ray diffraction of electrons in an atom, the mathematical expression of X ray diffraction for an atom in a crystal cell is given.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句