ultrasonic testing

non-destructive material testing using ultrasonic waves

en-GB/ˌʊltɹəˈsɒnɪk ˈtɛstɪŋ/
en-US/ˌʌltɹəˈsɑnɪk ˈtɛstɪŋ/

ক্যাটাগরি:

nondestructive testing