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单词 radiotelegraphy
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ra•di•o•te•leg•ra•phy  (rā′dē ō tə legrə fē),USA pronunciation n. 
  1. Telecommunicationsthe constructing or operating of radiotelegraphs.
  • radio- + telegraphy 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::
radiotelegraphy /ˌreɪdɪəʊtɪˈlɛɡrəfɪ/ n
  1. a type of telegraphy in which messages (usually in Morse code) are transmitted by radio waves; its use is no longer widespread as it has been superseded by satellite technology

radiotelegraphic /ˌreɪdɪəʊˌtɛlɪˈɡræfɪk/ adj
WordReference Random House Learner's Dictionary of American English © 2024
ra•di•o•tel•e•graph /ˌreɪdioʊˈtɛləˌgræf/USA pronunciation   n. 
    [countable]
  1. Telecommunicationsa telegraph in which messages or signals are sent by means of radio waves rather than through wires or cables.

v. [+ object]
  1. Telecommunicationsto send (a message) by radiotelegraph.
ra•di•o•te•leg•ra•phy /ˌreɪdioʊtəˈlɛgrəfi/USA pronunciation  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2024
ra•di•o•tel•e•graph  (rā′dē ō telə graf′, -gräf′),USA pronunciation n. 
  1. Telecommunicationsa telegraph in which messages or signals are sent by means of radio waves rather than through wires or cables.

v.t., v.i. 
  1. Telecommunicationsto telegraph by radiotelegraphy.
  • radio- + telegraph 1905–10
ra′di•o•tel′e•graphic, adj. 

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