system of units

例句：

1. 1. The new system ofunits is designed to simplify the process.
   新的单位制设计是为了简化过程。
2. 2. The governmenthas introduced a new system of units formeasuring distances.
   政府已经引入了一个新的单位制来测量距离。
3. 3. Thenew system of units willbe used in all official documents.
   新的单位制将被用于所有官方文件。