maintain at

maintain (something) at (something)

To keep something at a particular setting or level. I try to maintain my savings at $1,000, at least, in case of emergencies.
See also: maintain
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

maintain something at something

to keep something at a certain level, setting, degree, amount, etc. You must maintain the temperature at 30 degrees Celsius. We have to maintain the temperature at a very high level.
See also: maintain
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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