"reliable system" is a correct and usable phrase in written English.
It implies a system that is trustworthy and dependable. For example, "This company has a reliable system for tracking customer orders."
It's not a reliable system.
The score provides a reliable system for assessing patients' prognosis.
Get a reliable system up and running fast.
Nightcap: a reliable system for determining sleep onset latency.
Several projects currently in development address the need for a reliable system to authenticate digital images.
Our goal was to cheaply create a reliable system for high speed photography.
It concluded that creating a reliable system would be extremely difficult.
(Several travelers said the kiosks rarely worked at Kennedy or Dulles, and that Los Angeles had the most reliable system).
Mr. Anyansi said the agency remained "committed to developing a reliable system," but he declined to provide further details.
Now, scanning the pattern of veins on the back of the hand promises a more reliable system.
The software must draw together the Machine's various unusual components into a reliable system unlike any other computer ever built.
