从中可得到菲涅耳衍射区的许多特性。
It is shown that many properties of diffraction in the Fresnel region can be obtained.
通过细丝后在其后菲涅耳衍射区留下阴影，测量阴影宽度可得细丝直径；
The diameter of a thin wire was obtained by measuring the shadow in the Fresnel diffraction zone.
运用离子选择性电极（ISE）和X射线衍射分析（XRD）方法，对云南昭通威信地方病氟中毒区的氟源进行了研究。
The sources of the endemic fluorosis in Weixin, Zhaotong of Yunnan Province has been studied using an ion selective electrode(ISE) and X-ray diffraction analysis(XRD).
通过标定过共晶铝硅合金两相区衍射斑点指数，确定了过共晶相的取向关系。
By indexing the diffraction patterns in the hypereutectic, we get the relationship of crystal orientation.
糯米粉经羟丙基化变性后，颗粒形貌和X -光衍射图样发生变化，结晶区被削弱。
The changes of morphology, X-ray diffraction pattern and weaken of crystalline structure of the granules took place when the glutinous rice flour was hydroxypropylated.
衍射则是电波绕射传播到遮蔽区的现象。
The diffraction effect is the phenomenon of wave propagation into shadow region.
还给出一些有高阶劳厄区的电子衍射谱的实例，图上零阶和高阶的各班点指数均由计算机自动标定。
Some examples are given in which the electron diffraction patterns with Nth order Laue zone are indexed automatically by computer.
摘要：基于有限电导率光栅的微分理论，对工作在紫外光区的全息正弦光栅和三角槽形光栅的衍射效率做了数值计算。
Abstract: Diffraction efficiency of Al-coated triangle and holographic sinusoidal grating used in UV region are calculated using the differential formalism of exact electromagnetic theory.
摘要：基于有限电导率光栅的微分理论，对工作在紫外光区的全息正弦光栅和三角槽形光栅的衍射效率做了数值计算。
Abstract: Diffraction efficiency of Al-coated triangle and holographic sinusoidal grating used in UV region are calculated using the differential formalism of exact electromagnetic theory.
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