unit of measurement
测量单位
例句与用法:
A unit of measurement equal to the length of either of these instruments.
测量单位等于这两种工具长度任一种的一个测量单位
One used to represent a unit of measurement, such as feet or minutes in latitude and longitude.
用来代表衡量单位用来代表某一测量单位,如经度或纬度上的英尺或分