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Discover LudwigThe phrase "are maintenance" is not correct and usable in written English.
It may be intended to describe a state of being related to maintenance, but it lacks proper context and structure.
Example: "The systems are maintenance-heavy, requiring constant attention."
Alternatives: "require maintenance" or "in need of maintenance".
Dictionary
are maintenance
noun
Actions performed to keep some machine or system functioning or in service
Exact(48)
"There are maintenance crews there around the clock.
Besides the purchase price, there are maintenance, hangar, fuel, catering and insurance costs.
There are maintenance fees that average $300 to $600 a year.
The areas that university officials expect to be the most severely affected are maintenance and dining services.
It's not that there are maintenance issues with Winnebago products, Mr. Carr and Mr. Lasko hastened to emphasize.
Most of the operators are maintenance and cleaning workers who suffered injuries that left them unable to perform their original tasks.
Similar(11)
Cedar and redwood are maintenance-free but more expensive.
MOST consumers seem to have decided that their tires are maintenance-free, according to a telephone survey by the Rubber Manufacturers Association.
"They are maintenance-intensive," Andrew Walls, owner of a 1973 and a 1979 VW camper, warns.
There are different types of batteries available at the market valve-regulated lead acid (VRLA) battery, Lithiumarket valve-regulatedleadacidries are maintenance-free battery bank, whereas the depth of discharge of lithium ion batteries is twice of that of VRLA batteryes.
Compared to previous stealth designs like the F-117, the F-22 is less reliant on RAM, which are maintenance-intensive and susceptible to adverse weather conditions.
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