磨损
[mósǔn]〈动〉 wear and tear； wear
wear and tear; wear
减少磨损
save wear and tear
碑文由于严重磨损，已无法辨认。
The inscription has worn beyond recognition.
这滚柱轴承有明显的磨损。
The roller bearing shows clear signs of wear and tear.
［机械］
wear allowance
［机械］
wear rate
［机械］
coefficient of wear
