general-purpose oscilloscope

例句：

1. 1.The engineer used a general-purpose oscilloscope to test the circuit.
   工程师使用通用示波器来测试电路。
2. 2.The teacher demonstrated how to use a general-purpose oscilloscope.
   老师演示了如何使用通用示波器。
3. 3. The technician needs to check the general-purpose oscilloscope for any malfunctions.
   技术人员需要检查通用示波器是否有任何故障。