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Energy absorption and heat conduction are modeled to determine the temperature distribution and melt pool characteristics for different laser powers , scan speeds and layer thicknesses .
 Energy absorption, heat conduction, temperature, distribution, melt pool, laser powers, scan speeds, layer thicknesses
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:
 Energy absorption, heat conduction, temperature, distribution, melt pool, laser powers, scan speeds, layer thicknesses