laboratory oscillator

例句：

1. 1. The laboratory oscillator was used to test the new drug's effectiveness.
   实验室振荡器被用来测试新药的有效性。
2. 2. The engineer used the laboratory oscillator to adjust the frequency of the signal.
   工程师使用实验室振荡器来调整信号的频率。
3. 3. The laboratory oscillator was responsible for producing the precise timing of the experiment.
   实验室振荡器负责产生实验精确的时间同步。