The phrase "a not very small" is correct and usable in written English.
It can be used to describe something that is relatively small but not extremely so, often in a comparative context.
Example: "The garden is a not very small space, allowing for a variety of plants to thrive."
Alternatives: "a moderately sized" or "a fairly small".
Roll a small piece of clay (not very small) into a ball and stick this piece on top of the body.
Urban signal timing is a non-convex problem and finding an optimal solution for not very small and simple networks may take long time, wherever possible.
Make sure they are not very small so they don't shrink a lot in the heat.
Our sample size, although not very small, it is not large enough and needs countrywide studies before taking major actions.
Therefore, the design is applicable to packets of any size provided that they are not very small.
make your squares small but not very small.
Since I grew up on a not-very-prosperous small farm in western New York, north of Buffalo, there were few books in our household, and those that came into my hands were precious — like the Alice books.
One possible reason for this is that heteroplasmy (variation among different organelle genomes within the same individual) may be maintained for many generations, after the origin by mutation of a new variant, provided that there is not a very small bottleneck in the number of organelle genomes during transmission from parent to offspring (reviewed by Birky 1991).
In this study, we find whether or not a very small portion of rich nodes connected to each other can strongly affect the frequency of occurrence of basic building blocks (motifs) within a heterogeneous network.
Although this is not a very small number, the probability that this occurs for 37 of the 42 complexes is less than 10−22.
