单词	cathodic protection
释义	cathodic protection noun : the prevention of electrolytic corrosion of a usually metallic structure (such as a pipeline) by causing it to act as the cathode rather than as the anode of an electrochemical cell Example Sentences Recent Examples on the Web With one site near Streetman and the other near Corsicana, the cathodic protection wells target the Wildcat field down to a depth of 390 feet. Sergio Chapa, Houston Chronicle, 14 Oct. 2019 Electrochemical protection: An electrochemical method, called cathodic protection, is being installed to protect underground piping from corrosion and allow for enhanced monitoring of the pipeline system. For Lg&e And Ku, The Courier-Journal, 23 Jan. 2018 Also, TransCanada plans to use a measure called cathodic protection, in which impressed electrical current flows through the surface of the pipeline. Bobby Magill, Popular Mechanics, 8 Apr. 2013 Word History First Known Use 1930, in the meaning defined above
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