fresnel diffraction pattern

... Fresnel diffraction fringes 菲涅尔衍射条纹 fresnel diffraction pattern 菲涅尔衍射图 first Fresnel zone 第一菲涅耳区 ...

... frequency tripler 频率三倍器，三倍倍频器 Fresnel diffraction pattern 夫瑞乃绕射图形 Fresnel ellipsoid 夫瑞乃椭圆体 ...