| 单词 | tidal friction | 
| 释义 | > as lemmastidal friction   tidal friction  n. frictional resistance to the motion of the tide-wave, tending to retard the earth's rotation. ΘΚΠ the world > the earth > water > flow or flowing > tide > 			[noun]		 > friction tidal friction1880 1880    S. Haughton Six Lect. Physical Geogr. i. 9  				When the length of the day shall have become equal to the length of the year, tidal friction will cease. 1911    Encycl. Brit. XXVI. 945/1  				Tidal friction then diminishes planetary rotation, increases the satellite's distance, and diminishes the orbital angular velocity. < as lemmas  | 
	
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