horsepower
要点馬力
意味
- 馬力(仕事率の単位;《略》HP,H.P.,hp,h.p.)
例文
My car is deficient in horsepower.
私の車は馬力が足らない。
語源
英語の原文(Wiktionary)
From horse + power: the unit was originally defined as the amount of power that a horse could provide. Both non-metric and metric units of power were derived from effectively identical measurements of the power a draught horse could sustain over several hours, with the difference in watts solely due to different rounding errors to express that power in round numbers in the original non-SI units (ft·lbf/min and kgf⋅m/s respectively).