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词汇 momentum
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momentum n.

1690s in the scientific use in mechanics, "product of the mass and velocity of a body; quantity of motion of a moving body," from Latin momentum "movement, moving power" (see moment). Figurative use, "force gained by movement, an impulse, impelling force," dates from 1782.

updated on February 13, 2019

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更新时间:2025/5/1 18:49:37