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单词 international system of units
释义

WordReference Random House Unabridged Dictionary of American English © 2024
International System of Units, 
  1. Weights and Measures, Physicsan internationally accepted coherent system of physical units, derived from the MKSA system, using the meter, kilogram, second, ampere, kelvin, mole, and candela as the basic units (SI units) of the fundamental quantities length, mass, time, electric current, temperature, amount of substance, and luminous intensity. Abbr.: SI
  • translation of the earlier French name Système Internationale d'Unités

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