单词：joules
音标：[dʒu:lz] ；
n. 焦耳( joule的复数形式 )
n. a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second
n. English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889)
n. English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889)