“earphone”的概念、定义、翻译、参考文献-科学参考

单词	earphone
释义	earphone [`ir´fōn] ^{ENGINEERING ACOUSTICS} 1. An electroacoustical transducer, such as a telephone receiver or a headphone, actuated by an electrical system and supplying energy to an acoustical system of the ear, the waveform in the acoustical system being substantially the same as in the electrical system. 2. A small, lightweight electroacoustic transducer that fits inside the ear, used chiefly with hearing aids.
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