(1) operational efficiency ::
dabil eraginkortasuna(2) operational expenses ::
dabil gastuak(3) operational costs ::
dabil kostuak(4) operational research ::
dabil ikerketa(5) operational planning ::
dabil plangintza(6) operational cost ::
kostu operatiboak(7) operational control ::
dabil kontrol(8) operational readiness ::
dabil jarrera(9) operational procedures ::
dabil prozedurak