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international system of units

/ˌɪntəˈnæʃənəl ˈsɪstəm əv ˈjuːnɪts/

翻译: 国际单位制(简称SI)是现代最广泛使用的度量衡系统,包含七个基本单位(米、千克、秒、安培、开尔文、摩尔、坎德拉)以及由它们导出的单位,普遍应用于科学、工业和贸易。

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/ˌɪntəˈnæʃənəl ˈsɪstəm əv ˈjuːnɪts/C1formalscientific
  • zh国际单位制(简称SI)是现代最广泛使用的度量衡系统,包含七个基本单位(米、千克、秒、安培、开尔文、摩尔、坎德拉)以及由它们导出的单位,普遍应用于科学、工业和贸易。

The modern metric system of measurement, officially known as the Système International d'Unités (SI), which defines seven base units (meter, kilogram, second, ampere, kelvin, mole, candela) and derived units used universally in science, industry, and commerce.

  1. B2formal

    The modern form of the metric system, a globally accepted system of measurement based on seven base units (meter, kilogram, second, ampere, kelvin, mole, candela).

    zh国际单位制

    • The International System of Units defines the meter as the distance light travels in a vacuum in 1/299,792,458 of a second.
    • Scientists worldwide use the International System of Units for consistency in research.
    • The kilogram is the only base unit in the International System of Units still defined by a physical artifact.