slide case造句

• The results of the hardness test showed the composites " hardness increased with the increasing volume fraction of sic particles . results of the wear tests showed the composites had the outstanding wear resistance properties, especially in lubricated sliding case, the wear resistance properties of the composites were superior to the matrix alloy over one or two orders of magnitude
  结果表明，复合材料铸锭中，sic颗粒分布均匀；材料的硬度随sic颗粒体积含量的增加而增加；sic颗粒增强铝基复合材料具有优良的耐磨性能，在油润滑条件下，复合材料的耐磨性能比基体合金高一至两个数量级。