The phrase "a very large variety" is correct and usable in written English.
It can be used when describing a wide range of options, choices, or types of something.
Example: "The store offers a very large variety of fruits and vegetables, catering to all dietary preferences."
Alternatives: "a wide range" or "a vast assortment".
Mineralogical data show that the bentonite appellation covers a very large variety of materials.
Used in a very large variety of applications, drilling is one of the most complex manufacturing processes.
This method is second order-accurate on a very large variety of meshes, stable under a Courant–Friedrichs Lewy condition and it preserves naturally the diffusion asymptotic limit.
By focusing on basic physicochemical properties and strategic placing of only few highly active residues one can feasibly evaluate in silico a very large variety of possible catalysts.
Root-knot nematodes (RKNs) are ubiquitous parasites with an amazing capacity to interact with a very large variety of plant species.
A very large variety of self-contained refrigeration and air-conditioning packages are made, mainly for the consumer durable market and small domestic applications.
Although the cellular signal cascade is a general pattern of GPCRs, the very large variety of each protein involved renders these mechanisms very complex so that they are under a good deal of ongoing investigation.
This very large variety of component genes has been interpreted to mean that two-thirds of the E. coli pangenome originated in other species and arrived through the process of horizontal gene transfer.
However, the clinical follow-up of the discordant cases did not offer any meaningful and significant information, because of the very large variety of different treatment procedures in the patients.
To our knowledge, the sample size of the phenotypic comparisons between upland and irrigated rice in this study represents a very large sample of upland varieties to date and the sample covers most distribution regions of upland rice over the world, providing solid evidence supporting Chang et. al's observations [ 3].
Thus, the results presented in this paper would at once yield a very large number of results involving a large variety of special functions occurring in the problems of science, engineering, and mathematical physics etc.
