The phrase "at once precise and" is correct and usable in written English.
It can be used to describe something that is both exact and immediate or simultaneous in nature.
Example: "The report was at once precise and comprehensive, leaving no room for ambiguity."
Alternatives: "simultaneously exact and" or "both accurate and".
The result is an acoustic at once precise and warm.
She understands her characters perfectly, and expresses their relationship in ways at once precise and startling.
His visions of authentic self-realization are at once precise and strangely unconsidered.
He taught his readers to think clearly; his was a mind at once precise and generous.
"The influence of the futuristic fantasies of the fair has not faded, but has been translated into Talasnik's distinctive drawing style, at once precise and mysterious".
But Gaddis is a virtuoso and a once-in-an-era talent - his prose is at once precise and poetic, and his dialogue is pitch-perfect.
There's an oneiric charge and intensity to many of these poems that builds to a fabular clarity of thought, which is at once precise in its particularity and placeless.
In a release, Mr. Bangle said Mr. Delgado's work "showed a passion for the elements to be designed in the story, and in particular the jury and I were inspired by his illustration technique that was at once precise enough to grasp yet left much to the imagination.
His books are at once precise, zoning in on a minute detail in order to examine it from every angle, and expansive, drawing back to reveal the panorama.
That's why it's such a wondrous surprise that Leos Carax's new film, "Holy Motors" (which opens today at Film Forum and Film Society of Lincoln Center), seems at once so precise and so freewheeling, so exactingly conceived and yet so spontaneous.
The Times described me as a "student in Iran," an artful bio at once both precise and incomplete, one that skirted the line between revelation and concealment.
