international system of units

基本解釋

The name is a reference to International Prototype kilogram, as a base unit of mass in the International System of Units.
它的名字和國(guó)際單位中表示基本聚合物質(zhì)質(zhì)量千克有關(guān)。
The International System of Units and other units of measurement adopted by the State shall be the national legal units of measurement.
國(guó)際單位制計(jì)量單位和國(guó)家選定的其他計(jì)量單位，為國(guó)家法定計(jì)量單位。
In 1960, an official international body recommended the use of the International System of units.
國(guó)際單位制采用的平面角單位；長(zhǎng)度等于半徑的弧所對(duì)的圓心角。