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综合分析了高致密度（密度为常规多晶银的９５％）纳米银固体的同步辐射光电子能谱、Ｘ射线光电子能谱和真空加热实验的结果后，发现在高致密度纳米银团体内，除了空隙外，还应当有一定数量的微孔道存在。其中一些微孔道开口于纳米银固体的表面，外界气体可以通过这些微孔道进入纳米银团体内部。
The results of synchrotron radiation photoelectron spectroscopy, X-ray photoelectron spectroscopy and vacuum heating experiments of high density (95% of the density of conventional polycrystalline silver) nanosilver solid were comprehensively analyzed. It was found that in the high density nanosilver body, Voids, there should be a certain number of micro-channels exist. Some of the micro-channels open on the surface of the nano-silver solid, and outside air can enter the nano-silver inside through these micro-channels.