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The advantages and limitations of the developed method are discussed based on the comparison study between Archimedes method , conventional optical microscopy and x-ray computed tomography .
 process characterization: Archimedes method; process characterization: optical microscopy; process characterization: x-ray computed tomography
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: Archimedes method, optical microscopy, x-ray computed tomography 
Answer:
 process characterization: Archimedes method; process characterization: optical microscopy; process characterization: x-ray computed tomography