This phrase is correct and usable in written English.
You can use it when referring to something that has been kept, supported, or preserved. For example: "The tradition of communal living has been maintained in some rural areas."
It has been maintained in Hinduism, to some extent in Buddhism, and occasionally in Christianity.
Under the Coalition government, the health budget has been maintained in an era of unprecedented austerity.
There's a pragmatism involved in realising them, but the artistry has been maintained in all them, and we're proud of that.
"This land has been maintained in an almost pristine fashion, and it is unacceptable to do anything less" than to be a good steward of the land, Mr. Kleisner said.
The police believe that public order has been maintained in part because they released the footage relatively quickly, making protesters less apt to believe the department was engaging in a cover-up.
The gothic tradition of Stevenson's split-personality tale has been maintained in today's art by Douglas Gordon, while currents of madness and reason meet in the art of Richard Wright and Martin Creed.
For this reason, steroid has been maintained in 4 mg/day.
Lithium has been maintained in combination with quetiapine with a partial effect on mood swings and behavioral manifestations.
KMC-IMBG1 also has been maintained in filter (0.22 µm, Millipore) sterilized black tea supplemented with honey (2.0%) (BTH).
Furthermore, the double-stranded DNA in the hybrid materials has been maintained in a B-form structure in aqueous solution.
However, on a downside, inter-cluster communication may be subject to route retrieval delay if no previous path has been maintained in cache.
