powder porosity 中文意思是什麼

powder porosity 解釋
粉末孔隙度
  • powder : n 1 粉，粉末。2 （搽臉的）香粉；牙粉；發粉。3 （一服）藥粉；粉劑；散。4 塵土，泥屑；雪糝。5 炸藥...
  • porosity : n. 1. 多孔性。2. 【物理學】孔積率；孔度，隙度。3. 多孔部分；多孔結構；多孔的東西。
  1. Test method for density determination for powder metallurgy materials containing less than two percent porosity

    含低於2 %孔隙率的粉末冶金材料密度測定的試驗方法
  2. In this paper, micro - porous metals with 2 - 23 u m - pore diameter and 19. 3 - 62. 4 % porosity were produced by the powder metallurgy. through the experiments and sem analysis, the effect of processing parameters on porous structure was studied

    實驗應用粉末冶金的壓坯加熟發泡方法，制得了微孔泡沫金屬材料，其平均孔徑在2 - 23um之間，平均孔隙率在19 . 3 - 62 . 4之間。
  3. In this paper, the vsi is produced by powder metallurgy. various alloy elements added, porosity and microstructure of materials is considered to affact the vsi ' s property ; matching between the working and none - working layer of vsi is discussed ; and the cost reduction of two - layer vsi is analysed as well

    研究了各種合金元素的添加、孔隙率和顯微組織對閥座圈工作性能的影響；討論了雙層閥座圈工作層與非工作層之間的匹配；分析了雙層閥座圈在成本上的優勢。
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