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hitherto    音标拼音: [h'ɪð,ɚt'u]
ad. 迄今,至今

迄今,至今

hitherto
adv 1: used in negative statement to describe a situation that
has existed up to this point or up to the present time;
"So far he hasn't called"; "the sun isn't up yet" [synonym:
{so far}, {thus far}, {up to now}, {hitherto},
{heretofore}, {as yet}, {yet}, {til now}, {until now}]

Hitherto \Hith"er*to`\, adv.
1. To this place; to a prescribed limit.
[1913 Webster]

Hitherto shalt thou come, but no further. --Job
xxxviii. 11.
[1913 Webster]

2. Up to this time; as yet; until now.
[1913 Webster]

The Lord hath blessed me hitherto. --Josh. xvii.
14.
[1913 Webster]


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  • History of television - Wikipedia
    In 1928, Baird's company (Baird Television Development Company Cinema Television) broadcast the first transatlantic television signal, between London and New York, and the first shore-to-ship transmission
  • The First TV: A Complete History of Television
    The first television sets available for anyone were manufactured in 1934 by Telefunken, a subsidiary of the electronics company Siemens RCA began manufacturing American sets in 1939
  • A Historical Timeline: Evolution of the TV (1831–1996) - ThoughtCo
    Television began with experiments in electromagnetism and image transmission in the 1800s Major advancements include the use of cathode ray tubes and the development of electronic systems
  • Philo Farnsworth - Wikipedia
    Many inventors had built electromechanical television systems before Farnsworth's seminal contribution, but Farnsworth designed and built the world's first working all-electronic television system, employing electronic scanning in both the pickup and display devices
  • Who invented television and when was the first broadcast? - BBC
    When was television invented? John Logie Baird gave the first demonstration of a moving image transmitted by television in Soho, London on 26 January 1926
  • Who Invented Television? Inside The Complicated History
    Invented in 1884, the Nipkow disk was a simple spinning disk that could help send images through wires The disk’s spirals of apertures passed successively across a picture, making the idea of a mechanical television possible (though Nipkow described his system as an “electric telescope”)
  • Who Invented Television? - HISTORY
    In 1923, Zworykin was employed at the Pittsburgh-based manufacturing company Westinghouse when he applied for his first television patent, for the “Iconoscope,” which used cathode ray tubes to
  • Philo Farnsworth | Biography, Inventions, Facts | Britannica
    Philo Farnsworth, American inventor who developed the first all-electronic television system He made his first successful electronic television transmission in 1927 Farnsworth’s later work included the fusor, a proposed nuclear fusion device Learn more about his life and career
  • Who really invented television? - National Geographic
    Who really invented television? The breakthrough is often credited to Scottish inventor John Logie Baird—but the real history is far more complicated and collaborative
  • Who Invented the Television? And How? | Britannica
    In 1922 Charles Jenkins created a TV that transmitted a still picture across radio waves for the first time And in 1925 John Logie Baird’s prototype transmitted a live human face—the first true moving television image





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