合金中某一元素或组分的相对含量，通常用质量百分数或原子百分数来表示。
The relative content of a particular element or constituent (i) within an alloy, usually expressed in weight percent or atom percent.
合金中某一元素或组分的相对含量，通常用质量百分数或原子百分数来表示。
The relative content of a particular element or constituent (i) within an alloy, usually expressed in weight percent or atom percent.
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