| 单词 | attrition |
| 释义 | attrition [ǝ`trish·ǝn] GEOLOGY The act of wearing and smoothing of rock surfaces by the flow of water charged with sand and gravel, by the passage of sand drifts, or by the movement of glaciers. MATERIALS Wear caused by rubbing or friction. For metal surfaces, also known as scoring; scouring. |
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