1. A designated area or region that is controlled, managed, or developed by a single economic sector or industry
The government established a single-sector zone focused exclusively on textile manufacturing.
O governo estabeleceu uma zona de setor único focada exclusivamente na manufatura têxtil.
2. In urban planning and economics, an area where only one primary industry or economic activity is permitted or predominant
The single-sector zone near the port was dedicated entirely to fishing and seafood processing.
A zona de setor único perto do porto era dedicada inteiramente à pesca e processamento de frutos do mar.