（1）衍射衬度(diffraction contrast) 衍射衬度是指晶体中各部分因满足衍射条件(Bragg 方程)的程度不同而引起 的衬度，它是利用电子衍射效应来产生晶体样品像衬度的一...
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diffraction contrast image 衍衬象
electron diffraction contrast effect 电子衍射衬比效应
X-ray diffraction contrast X射线衍衬法
X-ray diffraction contrast X 射线衍衬法
ray diffraction contrast 射线衍衬法
electron diffraction contrast 电子衍衬
ray diffraction contrast X 射线衍衬法
A new theoretical analysis of the contrast reversal images for the zeroth and other diffraction order encoded by a rectangular grating is given.
本文对矩形光栅编码图片的衍射零级与其它各级单独所成的象，其衬度能够反转的现象，提出了新的理论分析。
In order to improve the contrast of reconstruction images for the materials which their elements absorbance index are very close, the technique of diffraction enhanced SR-CT is developed.
针对吸收系数相近的多组分材料，吸收成像无法分辨的情形，提出了衍射增强SR - CT方法。
The microstructure and fracture process of an eutectoid pearlitic steel have been observation and analysed by means of electron-diffraction-contrast technique and SEM.
应用电子衍衬技术和扫描电镜等手段，对共析珠光体轨钢的微观结构和断裂过程，进行了观察和分析。
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