| 单词 | ballistic pendulum |
| 释义 | ballistic pendulumnoun Physics.a device consisting of a large mass hung from a horizontal bar by two rods, used to measure the velocity of an object, as a bullet, by retaining the object upon impact, its velocity being a function of the displacement of the mass. Origin of ballistic pendulumFirst recorded in 1770–80 Words nearby ballistic pendulumballista, ballistic, ballistic camera, ballistic galvanometer, ballistic missile, ballistic pendulum, ballistics, ballistic trajectory, ballistic wind, ballistite, ballistocardiogram Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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