The phrase "a precise ratio of" is correct and usable in written English.
It can be used when discussing specific measurements or proportions in various contexts, such as cooking, science, or mathematics.
Example: "To create the perfect cake, you need a precise ratio of flour to sugar."
Alternatives: "an exact proportion of" or "a specific ratio of".
Most retroviruses require translational recoding of a viral messenger RNA stop codon to maintain a precise ratio of structural (Gag) and enzymatic (Pol) proteins during virus assembly1,2.
Cipollone roasts an entire pig in duck fat, removes the skin and extracts the fat, pulls meat from different parts of the animal in a precise ratio of light and dark, places the meat on top of the skin, inverts the whole thing so the skin is on top, and cooks it all a second time.
"We think it's the first example of a nanoparticle that carries a precise ratio of three drugs and can release those drugs in response to three distinct triggering mechanisms," says Jeremiah Johnson, an assistant professor of chemistry at MIT and the senior author of the new paper.
After painstakingly creating the most uniform margaritas I could muster -- a precise ratio of three parts tequila, two parts Cointreau, and one part fresh-squeezed lime juice, served in a salt-rimmed glass -- we sat down for some serious tequila-ing.
The gas mixer introduced a precise ratio of O2 or N2 into the gas-mixing chamber to achieve different PO2.
The unified scale is designed to provide a precise ratio, Ξ, of the resonance frequency of a given nuclide to that of the primary reference, the 1H resonance of tetramethylsilane (TMS) in dilute solution (volume fraction, ϕ<1%) in chloroform.
They, however, refrained from identifying patterns which may indicate successful ratio discrimination, arguing that "it is not known whether the detection of a precise ratio is achieved at the level of the glomerulus or at higher olfactory centers".
Signals can be single compounds or combinations of compounds in a precise ratio, detected either by smell or taste [ 2].
I needed a calculator to work that out, by the way, and would have greatly appreciated a small counter in one corner of the screen conveying the precise ratio of Benjamin's physical to mental age at any given moment, which might have had the added advantage of reminding me that I wasn't watching a film about a person whose life was of no interest whatsoever.
As before, the precise ratio of fiction to non-fiction here is tantalisingly unclear.
The name and precise ratio of ownership in the holding company have not yet been settled, the companies said.
