2012
When using microCT , however , it is also important to realize that while small porosity is acceptable when well distributed , only major flaws or those with specific location-specific clustering are important , as well as those in critical regions of the part .
 process characterization: microCT; machanical property: porosity; concept or principle: flaws; material: as; material: as
Please list all entity words in the text that fit the category.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} 
Answer:
 process characterization: microCT; machanical property: porosity; concept or principle: flaws; material: as; material: as