scale number

例句：

1. 1. The engineer measured the length of the beam with a scale number.
   工程师用刻度尺测量了梁的长度。
2. 2.The carpenter used a gauge to measure the thickness of the wood.
   木匠用卡尺测量木材的厚度。
3. 3.The graduation on the map shows the distance between cities in kilometers.
   地图上的刻度显示了城市之间的距离，单位为公里。