| 单词 | thermal efficiency | 
| 释义 | > as lemmasthermal efficiency   thermal efficiency  n. the efficiency of an engine measured by the ratio of the work done by it to the heat supplied to it. ΘΚΠ the world > matter > physics > mechanics > dynamics > thermodynamics > 			[noun]		 > specific cycle > efficiency thermal efficiency1910 Rankine efficiency1933 1910    Encycl. Brit. XIII. 138/1  				The improvement in thermal efficiency obtained by expansive working. < as lemmas  | 
	
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