英语词汇“pendulum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pendulum
释义	pen·du·lum \-ləm\ noun (-s) Usage: often attributive Etymology: New Latin, from Latin, neuter of pendulus hanging, pendent 1. a. : a body suspended from a fixed point so as to swing freely to and fro under the action of gravity and commonly used to regulate the movements of clockwork and other machinery b. : a suspended body that vibrates not by swinging but by rotating, with alternate twisting and untwisting (as the balance wheel of a watch) — called also torsion pendulum 2. : something that alternates between opposites < the pendulum of public opinion > 3. : a technique used in mountain climbing to accomplish a difficult traverse by swinging across on a rope
随便看	butterfly ray butterfly shell butterfly table butterfly tulip butterfly valve butterfly weed butterfly window butterhead butterheading butterier butteries butteriest butteriness buttering butteris butter knife butter leaves butterless butter lettuce butterman buttermilk butter muslin butternose butternut butternut

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