test signal oscillator

例句：

1. 1.The test signal oscillator was used to measure the accuracy of the circuit.
   测试信号振荡器用于测量电路的准确性。
2. 2.The engineer used a test signal oscillator to troubleshoot the problem.
   工程师使用测试信号振荡器来诊断问题。
3. 3. The test signal oscillator generated a high-frequency signal that could be used for testing purposes.
   测试信号振荡器生成一个高频信号，可用于测试目的。