X-ray powder diffraction (XRD) has been used to study the orientation of alkyl quaternary ammonium ion in the interlayer of products.是什么意思_X-ray powder diffraction (XRD) has been used to study the orientation of alkyl quaternary ammonium ion in the interlayer of products.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句