衍射线条line: vt. 交尾。 diffraction line broadening: 衍射线增宽diffraction line profile: 衍射线轮廓perpendicular diffraction delay line: 垂直衍射延迟线centroid of x ray diffraction line: x-射线衍射谱线重心下载手机词典可随时随地查词查翻译