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      首頁英語詞典incidenceincidence英英釋意
      
                    
      
	
      incidence
      
	
      英 ['?ns?d(?)ns]
美['?ns?d?ns]

      


	    
      
	
        
    
      • n. 發(fā)生率；影響；[光] 入射；影響范圍
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      英英釋意
      
	
      
	
      1. the relative frequency of occurrence of something
      

      2. the striking of a light beam on a surface;
      "he measured the angle of incidence of the reflected light"