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This study established a 3-D transient finite element model to elucidate the thermal behavior during SILD with a simplified inductive heat source .
 concept or principle: 3-D; concept or principle: finite element model; concept or principle: heat source
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: 3-D, finite element model, heat source 
Answer:
 concept or principle: 3-D; concept or principle: finite element model; concept or principle: heat source