annular aperture meaning in Chinese

环孔径
环状孔径

Axial irradiance distribution throughout the entire space behind a binary annular aperture
二元环形孔径全空间轴线上的衍射光强分布
Based on the fresnel diffraction integral , the analytical expression for the field distribution of converging spherical waves passing through an annular aperture is derived and some special cases are discussed
摘要基于菲涅耳衍射积分公式，推导出了会聚球面波通过环形光阑后场分布的解析公式，并讨论了一些特殊情况。