gauge reading

例句：

1. 1. The engineer used a gauge to measure the thickness of the material.
   工程师使用一个测厚仪来测量材料的厚度。
2. 2.The car's engine has a gauge reading that indicates the fuel level.
   汽车的引擎有一个读数指示燃料水平。
3. 3.The scientist conducted a series of experiments to determine the optimal temperature for the chemical reaction.
   科学家进行了一系列的实验来确定化学反应的最佳温度。