relative deformation

例句：

1. 1. The deformation of the material under load is a critical factor in its strength.
   材料在受力下的变形是其强度的关键因素。
2. 2.The relative deformation between two objects can be used to determine their relative positions.
   两个物体之间的相对变形可以用来确定它们的位置关系。
3. 3.In this experiment, we observed the relative deformation of the beam under different loads.
   在这个实验中，我们观察到了梁在不同负载下发生的相对变形。