| 释义 |
美制měizhì单位制的一种,以英尺为长度的主单位,磅为质量的主单位,秒为时间的主单位。美制的某些单位在实际数值上与英制的相应单位略有差别。{American system of weights and measures, using foot as the unit of length, pound as the unit of mass, and second as the unit of time, slightly different in some cases from their British counterparts} |