Iskani niz je bil najden v PREVODIH:
Echoimpulsverfahren der Ultraschallprüfung
en echo ranging technique of ultrasonic testing, pulse reflection technique of ultrasonic testing, ultrasonic pulse-echo testing method, ultrasonic pulse-reflection testing method, ultrasonic pulse-reflection testing technique
Echoprüfung
en echo check, echo checking, echo testing, loop back, loop check
Eichamt
en Office of Weights and Measures, bureau of standards, calibration office, calibration station testing station, calibration station, gauge office, standards bureau, testing station, weights and measures office