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单词 pound-velo
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pound-velo
pound-velo n. Obsolete rare a unit of momentum equal to the momentum of a body of mass 1 pound moving with a velocity of 1 foot per second (approx. 0.138 kgms−1).
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pound-velo1887
1887 J. B. Lock Dynamics 31 We shall choose as our unit mass-velocity that of a particle of 1 lb. moving with 1 velo. We shall call this unit a pound-velo.
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