liquid penetrant testing

例句：

1. 1. Thecompany conducted a liquid penetration testing on the new product to ensure its quality.
   该公司对新产品进行了液体渗透测试，以确保其质量。
2. 2. During the inspection, the inspector performed a liquid penetration testing on the pipeline.
   在检查过程中，检查员对管道进行了液体渗透测试。
3. 3.The test results showed that the material had passed the liquid penetration testing.
   测试结果显示，该材料通过了液体渗透测试。