Under the experiment conditions, the crystal structure of the as-prepared ultra-fine metallic powders is almost the same as that of the bulk metal without obvious oxidation.
用蒸发凝聚法制备的金属超微粉末的晶体结构与大块材料的晶体结构基本一致，氧化物含量少。
It has been demonstrated that the photoacoustic spectroscopy is suitable for the study of fine structure, forbidden transition and ultra analysis of rare earths.
表明光声光谱分析方法对于稀土元素的光谱精细结构、禁戒跃迁研究及其分析测定是一种重要的手段。
It has been demonstrated that the photoacoustic spectroscopy is suitable for the study of fine structure, forbidden transition and ultra analysis of rare earths.
表明光声光谱分析方法对于稀土元素的光谱精细结构、禁戒跃迁研究及其分析测定是一种重要的手段。
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