释义 |
SI [es'aɪ] noun uncountable specialized abbreviation for ■Système International: the international system of units used for scientific measurements, with standard base units such as the metre and the kilogram 国际单位制(SI:用于科学测量的国际单位体制,具有标准的基本单位如“米”、“公里”等)•The SI unit of electric current is the ampere.电流的国际单位制单位是“安培”。 |