1. A region or zone characterized by decreasing industrial activity, job losses, factory closures, and economic deterioration
The declining industrial area of the Rust Belt has struggled to reinvent itself for decades.
A área industrial em declínio da Cintura de Ferrugem tem lutado para se reinventar há décadas.
2. A formerly prosperous industrial region experiencing urban decay and reduced economic opportunities
The government launched initiatives to revitalize the declining industrial area.
O governo lançou iniciativas para revitalizar a área industrial em declínio.