| 释义 |
joule
\ˈjül, ˈjau̇(ə)l sometimes ˈjōl; the first seems to have been the physicistʸs own pronunc\ noun
(-s)
Etymology: after James P. Joule died 1889 English physicist
1. : the absolute mks unit of work or energy equal to 107 ergs or approximately 0.7375 foot-pounds or 0.2390 gram calorie and taken as standard in United States
2. : a unit of work or energy that is equal to about 1.00017 absolute joules and that was formerly taken as standard in U.S. — called also international joule |