| 单词 | Kovat's retention indexes | 
| 释义 | Kovat's retention indexes [`kō·vats ri`ten·chǝn ´in´dek·sǝs]  ANALYTICAL CHEMISTRY Procedure to identify compounds in gas chromatography; the behavior of a compound is indicated by its position on a scale of normal alkane values (for example, methane = 100, ethane = 200).  | 
	
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