Repeat testing: Repeatedly testing the same sample, under the same test conditions, to ensure the accuracy of the test results. Repeat testing can test the reliability of the test results and reduce the impact of testing errors, as well as testing the stability and consistency of the test equipment. source:https://www.testerinlab.com/news/725.html In summary, ensuring the accuracy of wear testing machine tests requires good equipment calibration, use of appropriate test parameters, sample preparation, control of test conditions and repetitive testing. These methods ensure the reliability and accuracy of test results and provide a scientific basis for the development and application of materials.