485
Therefore , we propose a novel surface finishing technique using controlled hydrodynamic multiphase flow with abrasion phenomenon to overcome the challenges in the surface finishing of additive manufactured internal channels .
 manufacturing process: surface finishing; manufacturing process: surface finishing; manufacturing process: additive manufactured
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: surface finishing, surface finishing, additive manufactured 
Answer:
 manufacturing process: surface finishing; manufacturing process: surface finishing; manufacturing process: additive manufactured