The paper summaries preparation method and application of nano copper powder and proposes its future research interest.
综述了纳米铜粉的应用及制备方法，对今后的研究方向进行了展望。
The advance in the research of the application of mechanochemistry in the synthesis of super-fine functional powder is presented and its development trend prospected.
综述了机械化学在超细功能粉体材料合成方面的应用研究进展，并进一步展望了机械化学合成研究的发展趋势。
Valve seat materials application and development in China and abroad are introduced, especially the research and application of the powder metallurgy valve seat abroad.
介绍了国内外气门座材料的使用与研制以及国外粉末冶金气门座的开发与应用情况。
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