test connector

例句：

1. 1. The engineer used a special tool to test the connector.
   工程师使用特殊的工具来测试连接器。
2. 2.The technician carefully connected the probe to the test connector.
   技术员小心翼翼地将探头连接到测试连接器上。
3. 3. Before starting the experiment, we need to ensure that all the components are properly connected.
   在开始实验之前，我们需要确保所有组件都正确连接。