单词 pendulum 释义 ▪ I. pendulum, n.|pndjlm|Pl. -ums, formerly (rarely) -a.[a. mod.L. pendulum (1643 in Watt Biblioth.), n. use of neut. of L. pendul-us pendulous, lit. a pendulous or free-hanging body; in It. pendolo (Galileo Operazioni Astronomiche, 1...
单词 pendulum 释义 pendulum n 1 weight hung on a cord from a fixed point so that it can swing freely 摆; 摆锤. 2 rod with a weight at the bottom that regulates the mechanism of a clock 钟摆. =>illus 见插图. 3 (idm 习语) the swing of the pendulum => swing...