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Ships have been in long-term service in the marine environment, and the metal matrix under the anti-rust paint layer on the hull surface is prone to concealed corrosion. It is difficult to achieve non-destructive testing by traditional testing methods. This test confirms thatTerahertznon-destructive testing technology can meet this testing requirement.

It demonstrates the testing effect ofTerahertznondestructive testing equipment on stator winding bar samples of power grid materials.