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To investigate the effect of the manufacturing process on the mechanical properties of 3D-printed parts , a series of experiments including Dynamic Mechanical Analysis ( DMA ) and ultrasonic wave propagation were conducted .
 manufacturing process, mechanical properties, 3D-printed parts, Dynamic Mechanical Analysis, DMA
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 manufacturing process, mechanical properties, 3D-printed parts, Dynamic Mechanical Analysis, DMA