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photophone

听听怎么读

英 ['fəʊtəfəʊn]

美 ['foʊtoʊfoʊn]

是什么意思

n.

光电话，光线电话；

英英释义

Photophone

The photophone (later given the alternate name radiophone) is a telecommunications device which allowed for the transmission of speech on a beam of light. It was invented jointly by Alexander Graham Bell and his assistant Charles Sumner Tainter on February 19, 1880, at Bell's laboratory at 1325 L Street in Washington, D.

以上来源于:Wikipedia

学习怎么用

权威例句

Photophone
Photophone
Photophone
THE PHOTOPHONE.
Photophone performance
PhotoPhone entertainment
Alexander Graham Bell's PHOTOPHONE
Notes on the Construction of the Photophone
XXXVIII. Notes on the construction of the photophone
A Tool for Scanning Document-Images with a Photophone or a Digicam
A Tool for Scanning Document-Images with a Photophone or a Digicam
A photophone-based remote nondestructive testing approach to interfacial defect detection in fiber-reinforced polymer-bonded systems
Alexander Graham Bell and the Photophone: The Centennial of the Invention of Light-Wave Communications, 1880–1980

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