transistor tester

例句：

1. 1. This transistor tester is very useful for testing electronic devices.
   这个晶体管测试仪对于测试电子设备非常有用。
2. 2. The engineer used the transistor tester to check the circuit's functionality.
   工程师使用晶体管测试仪检查电路的功能。
3. 3. The technician was tasked with using the transistor tester to troubleshoot the device.
   技术人员被指派使用晶体管测试仪来诊断设备的问题。