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Different from conventional L-DED processes , the impact of higher mass addition on the melt pool fluid flow and temperature distribution is significant .
 concept or principle: processes; concept or principle: impact; material: melt pool; machanical property: fluid flow; process parameter: temperature; concept or principle: distribution
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: processes, impact, melt pool, fluid flow, temperature, distribution 
Answer:
 concept or principle: processes; concept or principle: impact; material: melt pool; machanical property: fluid flow; process parameter: temperature; concept or principle: distribution