moving scale

例句：

1. 1. The engineer used a moving scale to measure the distance between the two points.
   工程师使用移动刻度来测量两点之间的距离。
2. 2.The doctor adjusted the moving scale on the scale chart to ensure accurate measurements.
   医生调整了刻度板上的移动刻度，以确保准确的测量。
3. 3. The scientist used a moving scale to measure the temperature of the liquid in the beaker.
   科学家使用一个移动刻度来测量烧杯中液体的温度。