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                全球各地区阳光辐射强度示意图
                 
			  
                2010-06-04 01:14:28　来源：　作者：　阅读： 　字体 : 大 中 小 
                 
								
				
                 
					
                 
					
                 
	
                

                全球各地区阳光辐射〗强度图   来源：德国
                

                单位：Kcal/(cm2.year)
                
                                    		
					
                 
					
                 
					
                 
				
                 
				
                 
			  
                 
				
                 
					
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