Sentence examples for maintaining and upgrading from inspiring English sources

Sinopec already spends a fortune maintaining and upgrading its refineries.

But because regulation limited their profits, they had little financial incentive to invest in maintaining and upgrading the system.

Almost half of its earnings are derived from Britain, where it is also involved in maintaining and upgrading the London Underground system.

Tube Lines is responsible for maintaining and upgrading three of the capital's busiest underground routes: the Northern, Piccadilly and Jubilee lines.

On a larger level, critics said, AT&T Wireless has not adapted well to the technology challenges of maintaining and upgrading its network.

Network Rail, which is in charge of maintaining and upgrading an ageing route that stretches from London to Bristol, Penzance and Hereford, was blamed for the delays.

They've taken a variety of nice old buildings and maintained and upgraded them".

Britain relies on it to secure, maintain, and upgrade, its nuclear warheads.

Clearly a case was made internally to maintain and upgrade the existing MacBook Pro line.

The result was a failure not just to add capacity, but to maintain and upgrade capacity that already existed.

The firm maintains and upgrades jets for the Royal Air Force and the Australian Air Force, and teaches Saudi pilots how to fly.