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Device for in-service checking of the integrity of welds in off-shore structures
Device for in-service checking of the integrity of welds in off-shore structures
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机译：在役检查海上结构焊接完整性的设备
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摘要
the ultrasonic probes are automatically moved and oriented towards the edges of the weld.;a squirrel cage structure (80) opened in u is fixed by 49 on the secondary member 123.a squirrel cage rotor 82
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