"磨耗试验机" can be translated into English as "abrasion tester" or "wear testing machine".
"Abrasion tester" is a more specific and commonly used term in the field of materials testing and quality control, referring to equipment designed to measure the resistance of materials to abrasion or wear.
"Wear testing machine" is another valid translation that conveys a similar meaning, emphasizing the machine's purpose of testing wear characteristics.
Both translations are acceptable, and the choice between them may depend on the specific context or industry terminology.