system of units
中文翻译
[化] 单位制
常见例句
1
used as a semiconductor in transistors n a complete metric system of units of measurement for scientists
2
it is not attached to anything and is raised and lowered by use of the hands and arms n the relative importance granted to something n an artifact that is heavy n an oppressive feeling of heavy force n a system of units used to express the weight of something n a unit used to measure weight n (statistics) a coefficient assigned to elements of a frequency distribution in order to represent their relative importance v weight down with a load v present with a bias