用扫描电镜（TEM）和X射线衍射（XRD）研究了碳纳米管的形貌和微结构。
Transmission electron microscopy(TEM) and X-ray diffraction(XRD) are employed to investigate the morphology and microstructures of carbon nanotubes.
在不同碳纳米管浓度的镀液中制备了复合镀层的试样，用X射线衍射法测定了各复合镀层的内应力。
Several composite coating samples were prepared in different concentration of carbon nano-tubes. The internal stress of composite coating was measured by X-ray diffraction method.
为了分析准单色光照射轴锥镜的衍射特性，用红色高亮发光二极管作为准单色光源。
A red highlight LED was used as quasi-monochromatic light source for analyzing the diffraction property of an axicon in quasi-monochromatic light.
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