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The material extrusion additive manufacturing technique known as fused filament fabrication ( FFF ) is an interesting method to fabricate complex ceramic parts whereby feedstocks containing thermoplastic binders and ceramic powders are printed and the resulting parts are subjected to debinding and sintering .
 material extrusion additive manufacturing, as, filament, fabrication, FFF, fabricate, ceramic, feedstocks, thermoplastic binders, ceramic powders, debinding, sintering
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:
 material extrusion additive manufacturing, as, filament, fabrication, FFF, fabricate, ceramic, feedstocks, thermoplastic binders, ceramic powders, debinding, sintering