101
Calibrated by a limited amount of visual examination of 3D images of individual particles , these techniques can classify powder particles as single near-spherical ( SnS ) particles , and non-spherical ( NS ) particles , which consist of either single highly non-spherical particles or multi-particles , where two or more smaller particles have been joined together .
 Calibrated, visual examination, 3D images, particles, powder particles, as, SnS, particles, non-spherical, NS, particles, non-spherical, multi-particles, particles
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:
 Calibrated, visual examination, 3D images, particles, powder particles, as, SnS, particles, non-spherical, NS, particles, non-spherical, multi-particles, particles