| 单词 |
actograph |
| 释义 |
actograph (ˈæktəʊgrɑːf, -æ-) [f. activity + -o + -graph.] A device enabling the amount of movement of an animal placed inside it to be recorded.
1956Psychol. Abstr. XXX. 40/1 The construction and performance of an actograph are described. 1965B. E. Freeman tr. Vandel's Biospeleol. xxiii. 379 An actograph, of which there are many types, can be used to measure overall activity. 1975Sci. Amer. Feb. 70/3 The boxes are balanced on a knife-edge fulcrum, and as the incarcerated crab moves between ends of this improvised actograph the box teeters, closing a microswitch that causes a deflection of a pen on a chart recorder. |

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