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1. The horizontal output pentode is a type of electronic device that produces a wide range of signals.
水平输出五管管是一种电子装置，能产生多种信号。
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2. The horizontal output pentode is used in various applications such as audio amplifiers and oscillators.
水平输出五管管在各种应用中被使用，如音频放大器和振荡器。
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3. The horizontal output pentode has been widely used in the field of electronics due to its high efficiency and low power consumption.
由于其高效率和低功耗，水平输出五管管在电子领域得到了广泛的应用。