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单词 mechanical equivalent of heat
释义

WordReference Random House Unabridged Dictionary of American English © 2024
mechanical equivalent of heat, 
  1. Thermodynamics(in any system of physical units) the number of units of work or energy equal to one unit of heat, as 4.1858 joules, which equals one small calorie.
  • 1835–45

Collins Concise English Dictionary © HarperCollins Publishers::
mechanical equivalent of heat n
  1. a factor for converting units of energy into heat units. It has the value 4.1868 joules per calorie
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