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单词 poundal
释义 ˈpoundal
[f. pound n.1: cf. cental.]
See quot. (Also called foot-poundal.)
1879Thomson & Tait Nat. Phil. I. i. §225 We..define the British absolute unit force as ‘the force which, acting on one pound of matter for one second, generates a velocity of one foot per second’. Prof. James Thomson has suggested the name ‘Poundal’ for this unit of force.1884A. Daniell Princ. Phys. ii. 19.
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更新时间:2024/12/22 18:17:28