fining test

例句：

1. 1. The engineer conducted a fine-tuning test on the new machine.
   工程师对新机器进行了精细调整测试。
2. 2. During the testing process, they discovered a flaw in the design.
   在测试过程中，他们发现了设计中的一个缺陷。
3. 3. The company is conducting a fine-tuning test to improve its product quality.
   公司正在进行精细调整测试以提高产品质量。