dielectric test

例句：

1. 1. This is a crucial step in the testing process for new materials.
   这是新材料测试过程中的关键步骤。
2. 2. The engineer conducted a dielectric test on the new device to ensure its reliability.
   工程师对新设备进行了介电测试，以确保其可靠性。
3. 3. The dielectric test results showed that the insulation was not as good as expected.
   介电测试结果显示绝缘性能没有达到预期。