神经
发表于 2025-4-1 03:43:50
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翻布寻找
发表于 2025-4-1 09:57:46
Ultrasonic Plate Testing with a Freely Programmable Electronic Systement (logarithmic within 80 dB dynamic range), relating of flaw-echo amplitude to backwall-ocho amplitude, flaw evaluation corresponding to test specifications, comprising test report by printer and good economy due to oscillating probe-arrangements.