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Biology, 19.08.2019 19:30 daevinepetersopa86on

During the process of steel production, the flaws in steel casting are detected by
a. ultrasonic vibrations.
b. infrasonic vibrations.
c. resonant vibrations.
d. longitudinal vibrations.

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During the process of steel production, the flaws in steel casting are detected by
a. ultrason...

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