《英汉医学词典》diffraction of X ray X线衍射 x-ray diffraction x: 射线衍射法diffraction (x-ray): 绕射线diffraction of x-ray: x线衍射diffraction x-ray methodx: 射线绕射法diffraction x-ray tube: 衍射用x射线管下载手机词典可随时随地查词查翻译