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Microstructure of 3D printed parts often differ from those prepared by traditional manufacturing methods and with the immerging of new AM methods , there is a demand for modelling and analysis of these structures .
 concept or principle: Microstructure; application: 3D printed parts; manufacturing process: traditional manufacturing; manufacturing process: AM; enabling technology: modelling
Please list all entity words in the text that fit the category.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} 
Answer:
 concept or principle: Microstructure; application: 3D printed parts; manufacturing process: traditional manufacturing; manufacturing process: AM; enabling technology: modelling