6381
Measurements show that for these cylindrical thin wall builds , there is no discernable effect on distortion from using the rotating versus constant scan patterns .
 cylindrical, builds, discernable, distortion, scan patterns
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:
 cylindrical, builds, discernable, distortion, scan patterns