1274
Besides an improved and efficient workflow for AM , the authors concluded to have improved the boundary smoothness of the lattices with the implicit volume representation , so that the manufacturability for AM is improved .
 concept or principle: workflow; manufacturing process: AM; engineering feature: boundary; concept or principle: lattices; engineering feature: implicit volume representation; concept or principle: manufacturability; manufacturing process: AM
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: workflow; manufacturing process: AM; engineering feature: boundary; concept or principle: lattices; engineering feature: implicit volume representation; concept or principle: manufacturability; manufacturing process: AM