two-dimensional focusing 双向聚焦
three-dimensional focusing 三维聚焦
three-dimensional focusing performances 三维聚焦性能
three-dimensional tunnel DC focusing method 三维坑道直流聚焦法
dimensional focusing
维聚焦
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Based on diffraction theory a theoretical method for evaluating the three-dimensional focusing performances of the compound X-ray lenses is presented.
给出了基于衍射理论的评价X射线聚焦组合透镜三维聚焦性能的理论方法。
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