She urges better training of operators, more inspections and more frequent maintenance.

Being built of earth, the Fort needed frequent maintenance and repairs, especially after heavy rains.

They are at best a relatively short-term solution requiring frequent maintenance.

However, the long-term expense involved in frequent maintenance outweighed any savings.

But the system has one significant drawback: the gyros require frequent maintenance.

The use of solid-state dimmers eliminates the need for frequent maintenance.

Sod houses required frequent maintenance and were vulnerable to rain damage.

This means, however, that some of the works require more frequent maintenance, such as re-waxing.

Due to the number of mechanical parts involved, frequent maintenance was necessary.

Larger structures, which tend to require more frequent maintenance, may have stairs and sometimes a lift, also called a service elevator.