quadruplex telegraph造句
造句与例句
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- However his most famous work was defending Edison s quadruplex telegraph and incandescent light bulb patents.
- Including the quadruplex telegraph, the carbon microphone, phonograph, incandescent light bulb and system of electric lighting.
- In an article written by Andrew Hargadon, he states, " Between the years of 1876 to 1881, the lab ( Menlo park ) produced numerous innovations in high speed, automatic and repeating, telegraphs; telephones; phonographs; generators, voltmeters; light bulbs; and vacuum pumps . " Edison s first major financial success was the quadruplex telegraph.
- To send two signals in a single direction at the same time, the quadruplex telegraph used one signal to vary the absolute strength or voltage of the signal ( amplitude modulation ) and the other signal to vary the phase ( polarity ) of the line ( phase modulation ), i . e ., the direction of current flow imposed upon the wire.
- It's difficult to see quadruplex telegraph in a sentence. 用quadruplex telegraph造句挺难的
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