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单词 θ191835
释义
society > communication > indication > signalling > audible signalling > [noun] > specific system of (2)
telephone1835

A system of communication using musical notes, devised by the French musician and composer Jean-François Sudre in 1828. Now historical and rare.

telephony1835

A system for communicating over a long distance using musical notes in which each note in a three octave range is assigned a meaning, devised by…

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更新时间:2024/11/10 22:26:12