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The spatiotemporal variations of the molten pool and deposit profiles during laser Directed Energy Deposition ( DED ) largely affect the formation of printing defects and the build quality .
 concept or principle: variations; concept or principle: molten pool; engineering feature: profiles; manufacturing process: laser Directed Energy Deposition; manufacturing process: DED; concept or principle: defects; process parameter: build
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: variations, molten pool, profiles, laser Directed Energy Deposition, DED, defects, build 
Answer:
 concept or principle: variations; concept or principle: molten pool; engineering feature: profiles; manufacturing process: laser Directed Energy Deposition; manufacturing process: DED; concept or principle: defects; process parameter: build