spra 中文意思是什麼
spra
解釋
血清陽性類風濕性關節炎-
With the hardness tests, it is indicated the hardness of the nano alumina or nano silicon carbide coating is improved to 1. 6 - 2. 5 times as that of the plasma spraying coating. with the wearing tests, it is indicated that low laser power employed, the wearing performance of the coating without nano material increase to 1. 3 times as that of the plasma coating, at the same time, the wearing performance of the coating with nano material increase 2. 3 - 6 times as that of the plasma spraying coating, the wearing mechanism is further analyzed. with the erosion tests, it is indicated that the erosion performance of the coating with nano material increase five times as that of the plasma spra
與相應等離子噴塗層相比，硬度測試表明，含納米al _ 2o _ 3或sic的各種復合塗層硬度提高了0 . 6 - 1 . 5倍左右；耐磨性測試表明，小功率下單純的激光重熔耐磨性提高了30 ，而納米滲入后塗層的耐磨性提高了1 . 3 - 5倍左右，對耐磨性提高的機理作了進一步的探索和分析研究；耐蝕性測試表明，經激光熔覆納米滲入后的各種塗層耐蝕性能提高了4倍以上，同時塗層厚度、表面質量對腐蝕性能有影響。
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