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
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    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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