UNITQUANTITYSYMBOL
单位数量符号
meter公尺length长度m
kilogram千克mass质量kg
second秒time时间s
ampere安培electric current电流A
kelvin开temperature温度K
mole摩尔amount of matter数量mol
candela烛光luminous intensity发光强度cd
SUPPLEMENTARY UNITS 辅助单位
The International System uses two supplementary units that are based on abstract geometrical concepts rather than physical standards.
国际制度采用了两种辅助单位，其依据于抽象的几何概念而非物理标准。
UNITQUANTITYSYMBOL
单位数量符号
radian弧度plane angles平面角rad
steradian立体弧度solid angles立方角sr
。