磨损作用（abrasion），牙科上称为牙磨损，指受外来元素形成的机械力（mechanical forces），导致牙齿结构脱落。外来元素包括牙刷、牙签、牙线等。
磨损作用也助长了风的侵蚀。
提出，在考虑无形磨损作用的前提下，用快速折旧法来适当加快工程机械更新换代的设想。
A concept about using an accelerated depreciation method to adequately speed up the renewal for construction machines under the presupposition that invisible wear effects be considered.
对狭缝式透气砖在大型精炼钢包中的损毁原因进行了分析，热应力和强大的冲刷磨损作用是两个主要因素。
The wear reason of slit purging plug used in the large refining ladle has been analyzed in detail in the paper, that is the thermal stress and strong erosion and abrasion.
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