parent metal

基本解释

At the parts far from the welded area, the elements were majorly from the parent metal.
远离熔焊区时，元素成分以母材元素为主。
Miner's law gives a good estimation for specimens which has a larger elongation of parent metal.
对于母材断裂伸长率较大、载荷水平较低的试件，其疲劳寿命较好地符合疲劳损伤累积的线性理论。
The coatings having heat-resistant and wear resistant performance can be obtained on copper parent metal by the subsonic speed oxyacetylene flame spraying.
采用氧-乙炔亚音速火焰喷涂工艺对高炉铜质风口套表面喷涂耐高温、耐磨材料，可以改善工件的表面性能。