31304821deteriorationPT2026-03-30 20:21:59UF31304822decayNDUF31304823degenerationNDUF31304824deterioratedNDUF31304825deterioratingNDBT31298691condition changingPTNT31317720decompositionPTNT31317723disintegrationPTNT31317727biodeteriorationPTNT31317732degradationPTNT31301838arrested decayPTNT31317735natural decayPT