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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 .
 concept or principle: Calibrated; process characterization: visual examination; concept or principle: 3D images; concept or principle: particles; material: powder particles; material: as; concept or principle: SnS; concept or principle: particles; concept or principle: non-spherical; material: NS; concept or principle: particles; concept or principle: non-spherical; concept or principle: multi-particles; concept or principle: particles
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: Calibrated, visual examination, 3D images, particles, powder particles, as, SnS, particles, non-spherical, NS, particles, non-spherical, multi-particles, particles 
Answer:
 concept or principle: Calibrated; process characterization: visual examination; concept or principle: 3D images; concept or principle: particles; material: powder particles; material: as; concept or principle: SnS; concept or principle: particles; concept or principle: non-spherical; material: NS; concept or principle: particles; concept or principle: non-spherical; concept or principle: multi-particles; concept or principle: particles