constant displacement shaker

例句：

1. 1.This constant displacement shaker is used to test the material's strength.
   这个持续位移振动器用来测试材料的强度。
2. 2. The constant displacement shaker was designed to simulate earthquakes for testing purposes.
   这个持续位移振动器被设计来模拟地震，用于测试目的。
3. 3.The constant displacement shaker was used to measure the material's elasticity.
   这个持续位移振动器被用来测量材料的弹性。