optacon
Definizioni
An electromechanical device that selectively raises small rods over the darker parts of a document, and thus enables blind people to read printed material that has not been transcribed into Braille.
Equivalenti
Englishoptacon
Livello QCER
B1
Intermedio
Questa parola fa parte del vocabolario QCER B1 — livello intermedio.
Questa parola fa parte del vocabolario QCER B1 — livello intermedio.
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