国际单位制
/ˌɪntənˈaʃənəl ˈsɪstəm ɒv ˈjuːnɪts/
n
English: international system of units · 国际单位制
释义：Decimal system established by the 11th General Conference on Weights and Measures (GCWM) in 1960 and used by many countries.
English: international system of units · 国际单位制