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Experimental data and theoretical modeling presented here improve our fundamental understanding of heat transfer in polymer additive manufacturing , and may contribute towards design tools for thermal optimization of these processes .
 concept or principle: Experimental data; concept or principle: theoretical; enabling technology: modeling; concept or principle: heat transfer; manufacturing process: polymer additive manufacturing; engineering feature: design; concept or principle: optimization; concept or principle: processes
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: 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} 
 Entities: Experimental data, theoretical, modeling, heat transfer, polymer additive manufacturing, design, optimization, processes 
Answer:
 concept or principle: Experimental data; concept or principle: theoretical; enabling technology: modeling; concept or principle: heat transfer; manufacturing process: polymer additive manufacturing; engineering feature: design; concept or principle: optimization; concept or principle: processes