| 单词 | sandblasting | 
| 释义 | sandblasting [`san´blast·iŋ]  ENGINEERING Surface treatment in which steel grit, sand, or other abrasive material is blown against an object to produce a roughened surface or to remove dirt, rust, and scale.  GEOLOGY Abrasion affected by the action of hard, windblown mineral grains.  | 
	
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