1. Essential maintenance work that must be performed immediately to prevent system failure, safety hazards, or significant operational disruption
The server requires critical maintenance to prevent data loss.
O servidor requer manutenção crítica para evitar perda de dados.
2. Urgent repairs needed for equipment or infrastructure to restore functionality or ensure safety compliance
Critical maintenance on the bridge was scheduled due to structural concerns.
A manutenção crítica da ponte foi agendada devido a preocupações estruturais.