| 单词 | phonautograph |
| 释义 | Word Frequency phonautograph(fəʊˈnɔːtəˌɡrɑːf) noun a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph Lincoln recorded his voice in a 'Phonautograph' device invented by a Frenchman namedLeon Scott, in which a stylus drew an image of the voice on lamp-blacked paper. |
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