... carbon fullerene 福乐烯 carbon microphone 炭粒传声器,碳粒送话器... carbon monoxide [化]一氧化碳...
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... carbon lamp 碳丝灯 carbon microphone 碳精麦克风,碳精微音器 carbon monoxide laser 一氧化碳激光器 ...
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但那都是电容式麦克风(condenser microphone),这碳粒式麦克风(carbon microphone),以前还真没见识过。原因么,你大概也猜到了,不是因为太新,而是因为太老,老到大概教科书都愿意提了。
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double button carbon microphone 双钮炭精盒传声器
single button carbon microphone 单钮式炭粒话筒
single-button carbon microphone [电子] 单容器炭粒传声器
carbon granule microphone 炭粒式话筒 ; 碳粒式话筒
carbon rod microphone 碳棒式话筒 ; 碳棒发话器 ; 碳棒微音器
positional response of carbon microphone 碳粒传声器倾斜角特性
carbon-disk microphone 碳盘传声器
carbon grain microphone 碳粒式麦克风
N a microphone in which a diaphragm, vibrated by sound waves, applies a varying pressure to a container packed with carbon granules, altering the resistance of the carbon. A current flowing through the carbon is thus modulated at the frequency of the sound waves 碳粒传声器; 一种具有对声波起响应并将变化的压力施加到充满碳粒的容器上的膜片的传声器
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