refery test

例句：

1. 1. The engineer conducted a reference test on the new machine.
   工程师对新机器进行了参考测试。
2. 2. The company conducted a reference test to evaluate its product quality.
   公司进行了参考测试，以评估其产品质量。
3. 3. The scientist performed a reference test to determine the accuracy of the new method.
   科学家进行了参考测试，以确定新方法的准确性。