3325英语网 英语单词
Phonautograph的音标发音
Phonautograph
英式发音：[fәu'nɔ:tәgrɑ:f]
美式发音
(n.) An instrument by means of which a sound can be made to produce a visible trace or record of itself. It consists essentially of a resonant vessel, usually of paraboloidal form, closed at one end by a flexible membrane. A stylus attached to some point of the membrane records the movements of the latter, as it vibrates, upon a moving cylinder or plate.
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双语例句
- The phonograph is in reality a development of the phonautograph, which was an instrument invented by Leon Scott in 1857 to automatically record sounds by diagrams. Edward W. Byrn. 十九世纪发明进展.
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