1. A facility, equipment, or infrastructure that is located in a position or place that is difficult, dangerous, or inconvenient to access or reach
The power plant's cooling system is a hard-to-reach installation located on the roof.
O sistema de refrigeração da usina é uma instalação de difícil acesso localizada no telhado.
2. Infrastructure or facilities requiring special equipment, training, or safety measures to access
The maintenance crew needed specialized equipment to reach the hard-to-reach installation in the underground tunnel.
A equipe de manutenção precisava de equipamento especializado para alcançar a instalação de difícil acesso no túnel subterrâneo.