国际标准质量千克的原型就是由90%铂和10%铱的合金制成的。

国际标准质量千克的原型就是由90%铂和10%铱的合金制成的。的英文翻译

基本释义

• "The international prototype kilogram, the primary standard (see weights and measures) for weight, is made of an alloy comprising 90%25 platinum and 10%25 iridium."