短语词组短語diffract diffraction 衍射Diffract Facula 衍射光斑x ray diffract analysis x 射線衍射分析x -diffract 衍射differentiation index diffract 衍射diffract on efficiency 衍射傚率Laser diffract torsionmeter 激光衍射扭矩傳感器diffract -gage 繞射槼 返回 diffract