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Define a reference diagram TRC (Transformations in Continuous Cooling) for metallurgical calculations.

Diagram TRC thus defined is necessary for the characterization of a law of metallurgical behavior upon cooling in the operator DEFI_MATERIAU (keyword factor META_ACIER).

For the definition of metallurgical data and the modeling that is made of them, refer to the document [:external:ref:`R4.04.01 <R4.04.01>`].

Produces a table_ TRC data structure.