The action or practice of communicating by electric telegraph (telegraph, n. 3a). Also: the art or science of constructing and using telegraphs…
单词 | θ191747 |
释义 | society > communication > indication > signalling > visual signalling > semaphore > [noun] > operation or construction of telegraph system (2) telegraphy1840 The action or practice of communicating by electric telegraph (telegraph, n. 3a). Also: the art or science of constructing and using telegraphs… submarining1855 The action of submarine, v. (in various senses). |
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