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Infills derived from homogenization-based TO , using projection-based methods , was subject under investigation in , making designs potentially more feasible for AM through the incorporation of a minimum length scale constraint for the microstructural features matching the print-resolution .
 engineering feature: designs; manufacturing process: AM; process characterization: length scale; concept or principle: microstructural; process parameter: print-resolution
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:
 engineering feature: designs; manufacturing process: AM; process characterization: length scale; concept or principle: microstructural; process parameter: print-resolution