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1.The vacuum-tube converter is a crucial component in the electronics industry.
真空管转换器是电子工业中至关重要的组件。
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2.The vacuum-tube converter was developed to improve signal transmission efficiency.
真空管转换器被开发出来，以提高信号传输效率。
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3.The vacuum-tube converter has been widely used in various electronic devices.
真空管转换器在各种电子设备中得到了广泛应用。