名词
中文翻译：加强器
同义词：
['amplifier', 'amplifying device', 'amplifier', 'amplifying apparatus', 'amplifyinginstrument']
例句：
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1. The speaker needs an intensifier to make his voice louder.
演讲者需要放大器使他的声音更响亮。
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2. The engineer used an intensifier to amplify the sound of the music.
工程师使用一个放大器来放大音乐的声音。
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3. The scientist used an intensifier to increase the sensitivity of her equipment.
科学家使用一个放大器来提高她的设备的灵敏度。