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Besides highlighting possible process improvements , the mechanical characterisation carried out in this work promises a significant contribution to the abilities of designing and simulating general 3D printed composite parts .
 concept or principle: process; application: mechanical; manufacturing process: 3D printed
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: process, mechanical, 3D printed 
Answer:
 concept or principle: process; application: mechanical; manufacturing process: 3D printed