名词
中文翻译：电话扬声器
同义词：
['telephone speaker', 'telephone loudspeaker']
例句：
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1. The stentorphone was the first one to connect with the mainframe.
最初的电话扬声器是第一个与主机连接的。
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2. The stentorphone is used in various industries for communication purposes.
电话扬声器被用于各种行业，用于通信目的。
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3. The stentorphone has a high-quality sound system that provides clear and crisp audio.
电话扬声器拥有高质量的音响系统，提供清晰而清脆的音频。