an international standard of weight
...ght required for recruits to the police force 加入警察队伍的身高标准 * an international standard of weight 国际重量标准 * the monetary standard, ie the proportions of fine metal and alloy in gold and silver coins （金银币的）法定成分 ..
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an international standard of weight
国际重量标准
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The international prototype kilogram, the primary standard (see weights and measures) for weight, is made of an alloy comprising 90% platinum and 10% iridium.
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。
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