| 单词 | hydraulic fracturing | 
| 释义 | hydraulic fracturing [hī`drȯ·lik `frak·chǝ·riŋ]  PETROLEUM ENGINEERING A method in which sand-water mixtures are forced into underground wells under pressure; the pressure splits the petroleum-bearing sandstone, thereby allowing the oil to move toward the wells more freely.  | 
	
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