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单词 foot-poundal
释义 foot-poundal
 /foot"pown"dl/, n. Physics.
 a foot-pound-second unit of work or energy equal to the work done by a force of one poundal when its point of application moves through a distance of one foot in the direction of the force. Abbr.: ft-pdl
 [1885-90]
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更新时间:2024/12/23 13:52:18