TRIBOLOGY is validvalid

the study of interacting surfaces in relative motion and associated issues, such as friction, lubrication, and wear

117,320 of 196,601 in NWL2023·also valid in CSW24

the study of interacting surfaces in relative motion and associated issues, such as friction, lubrication, and wear

254,719 of 280,887 in CSW24·also valid in NWL2023

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