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1.This electronic tube oscillator is used to amplify audio signals.
这个电子管振荡器用于放大音频信号。
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2. The electronic tube oscillator was the first device to produce sound waves.
电子管振荡器是第一个产生声波的设备。
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3. The electronic tube oscillator is widely used in various electronic devices.
电子管振荡器在各种电子设备中广泛使用。