"ensure high reliability" is correct and usable in written English.
You can use it when you want to express that something should be done to make sure a system or process is dependable and trustworthy. For example, "We need to find ways to ensure high reliability of our production processes."
Degradation test is often performed in order to ensure high reliability of an industrial product at the manufacturing stage.
Chemical feed systems should be designed to ensure high reliability and have flexibility enough to cover contingencies that might arise.
Low-power infrared laser beams are prone to disruptions by snow, rain and fog, so to ensure high reliability, early free space systems in cities were typically limited to buildings that were close to one another.
To ensure high reliability, the profile of the mooring cable connecting the fairlead and the pad-eye must be accurately designed.
The performance of sodium to air heat exchanger is very critical to ensure high reliability of the decay heat removal systems in sodium cooled fast breeder reactors.
To ensure high reliability of any protection method, as well as to implement new solutions in power electronics, novel current monitoring techniques and sensors are needed.
For applications such as the road traffic safety, the system has to respond in certain bounded time and ensure higher reliability.
The survival analysis with Weibull extrapolation was performed on the received adjusted data to ensure higher reliability of the received results.
The power plants ensuring high reliability performance should be ready to feed the loads when the Renewable Energy Sources are not available.
Moreover, the proposed algorithm extracts the fault transient information just relying on one transmission line connected to the busbar rather than overall feeders, thus simplifying the process while ensuring high reliability.
