shear dislocation

例句：

1. 1. The shear stress caused the material to deform.
   剪切应力导致材料变形。
2. 2.The shear strength of the material is critical for its use.
   材料的剪切强度对其使用至关重要。
3. 3. During the shear test, the sample was subjected to a constant force.
   在剪切测试中，样品受到恒定力的作用。