The phrase "alone maintained" is not correct and does not convey a clear meaning in written English.
It may be intended to express that something is maintained without assistance or support, but the phrasing is awkward and unclear.
Example: "The system was alone maintained by the technician, who worked tirelessly to ensure its functionality."
Alternatives: "solely maintained" or "independently maintained".
Cocaine, DPH and pyrilamine alone maintained self-administration and cocaine was the stronger reinforcer.
Spain thus established complete hegemony over all the Italian states except Venice, which alone maintained its independence.
Redox potentials gradually decreased to low values in batches with aquifer material without iron, while the batches with groundwater alone maintained a constant higher redox potential.
I doubt if anyone except Andrew Branson would have dared to put it on the market, let alone maintained it to the highest standards for 25 years.
Outside of parks and wilderness, prescribed fire with logging was effective at reducing fire risk on portions of the landscape in two restoration scenarios, largely by maintaining deciduous tree dominance and fire-tolerant red and white pine stands, and timber harvest alone maintained patches of less fire-prone deciduous forests in some scenarios.
Three monkeys immunized with DNA alone maintained low plasma virus loads by 1 year post-challenge; the fourth exhibited high virus loads and significant CD4+ cell decline.
It struggles to service its by now much-increased debt, let alone maintain its dividend.
In "The Giant Racer," done by Power around the same time, the suggestion of movement alone maintains that vital link.
"It's hard for us to go away for more than a long weekend right now," let alone maintain a second home, said Ms. Katzman.
But few comedies reach the high-water mark of Red Dwarf's imperial phase to begin with, let alone maintain it for six series.
Fundamentalist Christians alone maintain this odd position of the Bible's literal inerrancy, explicable only through faith, through the submission of reason to something deeper or higher or more complete than sense.
