non-metallic inclusion

基本解释

Observations carried out by SEM showed that some defects existing on the wire surface and non-metallic inclusion was found on the fracture surface.
扫描电镜观察表明，微丝表面局部存在缺陷，而断口观察发现有非金属夹杂物存在；
The results showed that the major cause of reducing diameter was more non-metallic inclusion in the steel than standard value, billet segregation and shrinkage void.
用扫描电镜、大型金相显微镜观察分析高碳钢盘条的缩径，结果表明：造成缩径的主要原因是盘条中的非金属夹杂物超标、方坯偏析和缩孔。
In order to increase the quality of castings, it has important meaning to study more effective methods to remove the non-metallic inclusion from molten magnesium alloy.
随着镁合金工业的快速发展，对其质量和性能的要求越来越高，因此研究出更多高效实用的去除非金属夹杂物方法，对提高镁合金铸件质量具有重要意义。