Recorders

例句:

• The diaphragms used in the recorders and reproducers are made of French rolled plate glass, thinner than a sheet of ordinary writing paper. Edward W. Byrn. 十九世纪发明进展.
• Forty-one distinct inventions relating to the phonograph, covering various forms of recorders, arrangement of parts, making of records, shaving tool, adjustments, etc. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

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