diffraction of circular aperture 基本例句 圆孔衍射 Based on the principle of the double hemicycle diffraction, by giving each of them different discrepancy, the phase can be detected with the diffraction patterns.摘要基于双半圆孔衍射的基本原理，通过对其两部分分别施加不同的相位，利用衍射图样，进行了相位信息提取研究。