When diffraction problems are solved by the angular spectrum theory, high speed and high accuracy can be obtained, especially for near-field Fresnel diffraction.
用角谱理论来处理衍射光场，不仅速度快，而且在处理近场菲涅耳衍射光场时的准确度是其它方法无法比拟的。
When diffraction problems are solved by the angular spectrum theory, high speed and high accuracy can be obtained, especially for near-field Fresnel diffraction.
用角谱理论来处理衍射光场，不仅速度快，而且在处理近场菲涅耳衍射光场时的准确度是其它方法无法比拟的。
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