photophone
英 ['fəʊtəfəʊn] 美 ['foʊtoʊfoʊn]

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

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