| 单词 | pantelegraph |
| 释义 | pantelegraph/panˈtɛlɪɡrɑːf/ /panˈtɛlɪɡraf/Now historical and rare noun A form of facsimile telegraph invented by Giovanni Caselli in 1856 for transmitting images along a line connecting two isochronously oscillating pendulums, one of which guides an iron point over the original (written or drawn in non-conducting ink on metallic paper), so setting up equivalent motions in the other, which carries a pencil to reproduce the image. Origin |
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