单词 | dynagraph |
释义 | dynagraphn. The name given in the United States to a machine of the same character as the dynamometer car on some English Railways, used for mechanically reporting the condition of a railway line, the speed of a train, and the power used in traversing a given distance. These elements are recorded on a paper ribbon moved by means of gearing from one of the axles of the car or van which carries the machine. ΚΠ 1890 in Cent. Dict. This entry has not yet been fully updated (first published 1897; most recently modified version published online December 2018). < n.1890 |
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