“金属性”的英语？

银河系中最年老的恒星表现出一种对氢而言的贫金属性.The oldest stars in the Galaxy exhibit a metal deficiency relative to hydrogen.从上到下,电负性减小,金属性增强.Metallic character increases down Group 16 as electronegativity decreases.垫圈材料是 非金属 性的或金属性的.Washer ...