concentration of elements

• 元素含量

concentration of elements的用法和样例：

例句

1. Copper, one of the main alloying elements, has great effect on the microstructure and properties.
   提高铜元素含量可能形成多相强化的效果，从而提高合金的强度。
2. In geochemical analysis we encounter ranges of analyte concentration that can span several orders of magnitude.
   在地球化学分析中，我们常常会遇到拟分析元素含量范围可以跨越好几个数量级的情况。