strainmeter

例句：

1. 1.The strainmeter was used to measure the stress in the material.
   应变计用于测量材料中的应力。
2. 2.The engineer used the strainmeter to monitor the deformation of the structure during construction.
   工程师使用应变计监测结构施工过程中的变形。
3. 3. The strainmeter was crucial in detecting any changes in the material's properties.
   应变计在检测材料属性变化中至关重要。