| 单词 | breaker | 
| 释义 | breaker [`brā·kǝr]  MINING ENGINEERING 1. In anthracite mining, the structure in which the coal is broken, sized, and cleaned for market. Also known as coalbreaker.  2. One of a row of drill holes above the mining holes in a tunnel face.  OCEANOGRAPHY A wave breaking on a shore, over a reef, or other mass in a body of water.  | 
	
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