The article analyses the samples under the three heat treatment systems of inflection test with comparability, and illustrates the relation between metallographic structure and inflection performance.
Therefore, to the reliability and comparability of the test, we believe that our domestic prothrombin reagents should be marked with accurate ISI value and INR should be used as PT report form.
The simulation curve and test curve of frost heave are analyzed by using the theory of fractal geometry, and it is shown that the curve of frost heave is of self-comparability.