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开尔文连接



		

			

									
					    ygc
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Aug 16, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
     请问半桥上管氮化镓这样的开尔文连接正确吗？