phonautograph的翻译，读音
英/fәu'nɔ:tә^rɑ:f/
释义：
[物]声波记振仪, 声波振动记录[图表]
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.
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.