1)physically separable unit,可实际分隔单位2)unidirectional actual position,单向实际位置3)international practical system of units,国际实用单位制4)unit separator character(US),单位分隔号字符5)the specific energy input E r,单位时间实际输入比能6)unit interval UI,单位间隔
用法例句
A measurement model of unidirectional actual position of the NCA is constructed and the combined uncertainty is informed.
