高次衍射束 higher order diffracted beam
零次衍射束 zero order diffracted beam
一次衍射束 first order diffracted beam
激光束衍射 laser-beam diffraction
衍射光束 diffraction-free beam
无衍射光束 non-diffracting beam
射线衍射微光束摄影机 X-ray diffraction microbeam camera
电子束衍射 [晶体] electron beam diffraction
原子束衍射 [物] atomic beam diffraction
样品不应当过分大，以致不恰当地增加了衍射束的宽度。
The sample should not be so large as to increase unduly the width of the diffracted beam.
前言： 对用电子显微镜测量薄膜厚度的三种方法：双束衍射法、污斑法、污线法进行了实验及比较分析。
The experiments , comparison and analysis for the three thickness measurement methods :two-beam diffraction method , contamination spot method and contamination line method were carried out.
理论分析表明，通过对入射角进行优化可以得到衍射效率高且光强分布均匀的分束器。
Theoretical analysis shows that the splitter with high diffraction efficiency and uniform distributed light intensity can be designed by incidence Angle optimization.
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