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A thin disk, especially in a microphone or telephone receiver, that vibrates in response to sound waves to produce electric signals, or that vibrates in response to electric signals to produce sound waves. |
中文意思: 膜片,振动板一种薄的圆盘(尤其是在麦克风和电话收话器里那种)响应声波振动产生信号或者响应电信号振动产生声波 |
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