A metric system of measurement units based upon the meter (length), gram (weight), second (time) and amperes (electrical current).

基于米(长度)、克(重量)、秒(时间)和安培(电流)的一种测量单位公制系统。

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In Australia we use the metric system of measurement and the rating of insulation is known as the R-value which means thermal resistance.

在澳大利亚，我们使用公制计量方法并且绝缘等级即被作为代表耐热能力的热阻值。

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The compound name indicates to the APM system both the namespace of the submission and the actual metric name; so a compound name usually has at least a root category and a measurement description.

复合名称向apm系统指示提交的名称空间和实际的指标名称；因此，复合名称中通常至少包括根类别和度量说明。

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The United States is one of the few countries left in the world who still have not converted to using the Metric System as a standardized system of measurement.

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One, Mars Climate Orbiter, had a particularly humiliating crash, because the fault lay with a group of engineers who, in defiance of common sense, had continued to use imperial units of measurement in their calculations when all around had adopted the metric system.

ECONOMIST: Exploring Mars