| 单词 | dichlorodifluoromethane | 
| 释义 | > as lemmasdichlorodifluoromethane   dichlorodifluoromethane n.  Brit.  , U.S.  , ΚΠ 1930    G. W. Jones  & G. St J. Perrott 		(U. S. Bureau Mines)	 		(title)	  				Extinction of methane flames by dichloro-difluoro-methane. 1976    Science 8 Oct. 171/1  				Trichlorofluoromethane and dichlorodifluoromethane (CFCl3 and CF2Cl2, the halocarbons implicated in ozone damage). 2006    Akron 		(Ohio)	 Beacon Jrnl. 		(Nexis)	 2 Sept.  b3  				Downwind samples just off the landfill showed levels of the chemicals ranging from acetone at 6.4 parts per billion to dichlorodifluoromethane at 0.55 parts per billion. < as lemmas  | 
	
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