[Visitor (112.0.*.*)]answers [Chinese ] | Time :2022-07-09 | Friction is a Chinese word meaning that an object is in close contact with an object, moving back and forth.
Basic explanation
Use pressure to rub on the surface of an object
acceptation
Objects come into close contact with objects, moving back and forth
tribology
A discipline that studies friction, wear, and lubrication
classify
Static friction (rolling friction), sliding friction |
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