| 单词 | rolling pendulum |
| 释义 | > as lemmasrolling pendulum rolling pendulum n. a pendulum consisting of a heavy cylinder able to roll backwards and forwards on a concave cylindrical surface. ΚΠ 1805 Jrnl. Nat. Philos. Mar. 156 It is probable that the rolling pendulum would be found superior to that in common use. 1919 Sci. Abstr. A. 22 50 Describes and gives the mathematical theory of a rolling pendulum with isochronous motion. 2008 F. C. Moon Appl. Dynamics (ed. 2) iv. 204 In the rolling pendulum..the fixed revolute joint of the classical pendulum is replaced with a rolling circular arc. < as lemmas |
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