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              device
               工程科技 
              
				
              

										 
                      element or assembly of elements performing a requiredfunction.NOTE A device may form part of a larger device.[IEV 151]mechanism or piece of equipment designed to serve apurpose or perform a function for example, circuit breaker,relay or substation compute......（本文共 741 字）      [閱讀本文] >> 
               
			  
				 
              
				 
				
				
              
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