photophone

photophone怎么读

英式音标：[\'fəʊtəfəʊn]

美式音标：[\'foʊtoʊfoʊn]

同义词：radiophone

photophone的意思释义

n.

光电话，光线电话；

英英释义

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.

photophone用法及例句

例句参考

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