shear rate thixotropy

例句：

1. 1.The shear rate of the material is critical to its strength.
   材料的剪切速率对其强度至关重要。
2. 2.The shear rate affects the flow behavior of the fluid.
   剪切速率影响流体的流动行为。
3. 3.In engineering, the shear rate is often used to describe the deformation of materials under stress.
   在工程中，剪切速率常用于描述材料在应力下变形的情况。