shear test of discontinuity

例句：

1. 1.The shear test is a method used to measure the strength and deformation of materials under shear stress.
   剪切试验是一种测量材料在剪切应力下强度和变形的方法。
2. 2.In the shear test, the sample is subjected to a constant force applied perpendicular to its length.
   在剪切试验中，样品受到一个垂直于其长度的恒定力的作用。
3. 3. The shear test has been widely used in engineering to assess the behavior of materials under different loading conditions.
   剪切试验在工程中被广泛应用，用于评估材料在不同加载条件下的行为。