test block

例句：

1. 1. The engineer used a test block to measure the strength of the material.
   工程师使用一个测试块来测量材料的强度。
2. 2.The scientists conducted experiments on the test block to study its properties.
   科学家们对测试块进行实验，以研究其性质。
3. 3.The company is testing a new test block for its new product.
   该公司正在测试一种新的测试块，用于其新产品。