An instrument for estimating sliding friction.
| 单词 | θ75652 | 
| 释义 | the world > matter > physics > mechanics > force > 			[noun]		 > resistance > friction > instrument measuring (2)		 tribometera1774 An instrument for estimating sliding friction. peirameter1842 A type of dynamometer, used to give an indication of the roughness of a road surface by measuring the force required to drag it along the surface. | 
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