名词
中文翻译：高频放大器
同义词：
['high-frequency amplifier', 'high-frequency transmitter']
例句：
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1. TheHF amplifier was designed to boost the signal strength in remote areas.
高频放大器被设计用来在偏远地区增强信号强度。
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2. The engineer used an HF amplifier to transmit data over long distances.
工程师使用高频放大器来远距离传输数据。
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3. The HF amplifier was essential for maintaining communication during the power outage.
在停电期间，高频放大器对于保持通信至关重要。