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Both models are built upon a regression metamodel of heat transfer beneath the laser beam , to which an auxiliary thermal model is added to account for residual heat in track-to-track interactions .
 regression, heat transfer, laser beam, model, residual heat
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 regression, heat transfer, laser beam, model, residual heat