| 释义 | 
		bu·ta·none AHD[byo͞o′tə-nōn'] D.J.[ˈbjuːtəˌnəʊn]K.K.[ˈbjutəˌnon]n.(名词)- A colorless, flammable ketone, CH3COCH 2CH 3, used in lacquers, paint removers, cements and adhesives, cleaning fluids, and celluloid. Also called  methyl ethyl ketone 丁酮:一种无色、可燃性酮,CH3COCH 2CH 3,用于油漆、去漆剂、结合剂和粘合剂、清洁液及赛璐珞 也作  methyl ethyl ketone
 
 - butan(e) butan(e)
 
 - -one -one
 
 
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