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Keywords:
Scratch,
Microcutting,
Tribological,
Abraded,
Slid
an abraded area where the skin is torn or worn off
a minor injury, since only the surface layers of the skin are damaged
a scratch on the surface of
marks or small scratches on the surface of a coin where another coin or object has slid across or bumped the coin.
The undesired removal of material caused by scratching or microcutting.
Material worn away from the functional surface by tribological loading.
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