701
The 1 mm blowhole and the residual stress distribution of the sample were detected by the ultrasonic signals in the LOUD detection , which shows consistency with the conventional ultrasonic testing ( UT ) .
 mm, blowhole, residual stress, distribution, sample, consistency, testing, UT
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:
 mm, blowhole, residual stress, distribution, sample, consistency, testing, UT