The phrase "allow variation" is correct and usable in written English.
You can use it when discussing the acceptance of differences or changes in a particular context, such as rules, designs, or processes.
Example: "The guidelines are flexible and allow variation to accommodate different needs and preferences."
Alternatives: "permit differences" or "enable flexibility."
Inflexible production processes, such as with mass production lines, where it is difficult to alter the design of a product or allow variation in the process sequences, means that the tech industry can be guilty of producing more equipment than the market actually wants or that doesn't fit exactly what the market needs.
Scaled tests, in which one or more characteristic dimensions are modified, allow variation of the different mechanisms.
Bump width control is intended to allow variation of the spectral profile of the microcollisions, rather than to directly represent particle width.
Interchangeable resonators based on a folded strip line design allow variation of the resonance frequency over a range of 5 11 GHz.
It takes advantage of dynamic constitutional diversity to allow variation and selection and thus leads towards the emergence of adaptive and evolutive chemistry.
are only valid for uniform stress distribution along the axial and circumferential directions of the pressure vessel and allow variation only through-the-thickness.
The problem was, Egyptian censors had already approved the script and wouldn't allow variations, especially not for an "Egyptian builders" joke.
Why not allow variations?
SHS reactors easily allow variations according to the type of product being manufactured.
The "forces" theory appears to allow variation-biased evolution under the condition of neutrality, but this appearance is superficial; and the "forces" theory can not explain (not even superficially) the case of mutation-biased adaptation shown theoretically in [ 35] and observed by Rokyta, et al. [ 45].
This allows variation in hours without necessarily inducing overtime pay.
