· calculations, 70 layers of R4D-S wcrc rcquircd to repair thc dcfcct. Undcrwatcr, prcliminary...
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· calculations, 70 layers of R4D-S wcrc rcquircd to repair thc dcfcct. Undcrwatcr, prcliminary opcratlons wcrc performed prior to surface preparation by sandblasting to get a good
