| 释义 |
dynagraph|ˈdaɪnəgrɑːf, -æ-, dɪn-|
[f. Gr. δύνα(µις power + -γραϕος writer, -graph.]
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.
1890in Century Dict. |