6380
Here , two experimental builds of cylindrical geometry , one using a rotating scan pattern and the other using a constant scan pattern , are designed to provide post-build distortion measurements .
 experimental, builds, cylindrical, scan pattern, scan pattern, designed, distortion
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:
 experimental, builds, cylindrical, scan pattern, scan pattern, designed, distortion