carbon rod microphone碳棒式话筒;碳棒发话器;碳棒微音器;翻译
carbon atom microphone炭粒式话筒
carbon granule microphone炭粒式话筒;碳粒式话筒
carbon grain microphone碳粒式麦克风
carbon disk microphone碳传声器
carbon-disk microphone碳盘传声器
single button carbon microphone单钮式炭粒话筒
carbon-stick microphone炭棒传声器
double button carbon microphone双钮炭精盒传声器
N（名词） 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