【international_prototype_kilogram】什么意思_英语international_prototype_kilogram的翻译_音标_读音_用法_例句_在线翻译

international prototype kilogram

[计量] 国际千克原器

不需原器：“原器”（prototype）是一种用来定义单位的真实物体，例如 国际千克原器（International Prototype Kilogram）是一块存放于法国国际计量局的铂铱合金圆柱体，其质量定义为1公斤。

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国际公斤原器

所有砝码的制造都是以位于BIPM（国际度量衡局）的“国际公斤原器（International Prototype Kilogram）"为基准，可确保砝码的溯源更可靠。

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国际公斤原型

国际公斤原型 international prototype kilogram 金 Ⅰ名词1.(金属) metals 合金 alloy; 五金店 hardware store; 冶金 metallurgy2.

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短语

International Prototype of the Kilogram 国际公斤原器 ; 国际千克原器

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The name is a reference to International Prototype kilogram, as a base unit of mass in the International System of Units.

它的名字和国际单位中表示基本聚合物质质量千克有关。

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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。

youdao

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' The currently accepted answer is the mass of a cylinder of platinum and iridium called the International Prototype Kilogram.

ENGADGET: blogger-avatar
Because of this, the actual International Prototype Kilogram (yes, there does only seem to be one in existence) is stored in a vault in Sevres, France, limiting the lay person's ability to determine the actual weight of a kilogram.

ENGADGET: blogger-avatar
The problem with that definition, of course, is that not just anybody can measure it -- since most of us don't have an International Prototype Kilogram laying around, especially since every time the thing is picked up a few atoms rub off of it making it a little bit lighter.

ENGADGET: blogger-avatar

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