The phrase "a main use" is correct and usable in written English.
It can be used to describe the primary or most important function of something.
Example: "The main use of this software is to streamline project management and improve team collaboration."
Alternatives: "a primary function" or "a key purpose".
An interesting point that arises here is that with some sites, they likely only have one use or arguably a main use, and therefore may not be as useful in distinguishing unnatural personae at a context level.
A main use of the data gathered by the newest devices is to reconstruct events that send patients to emergency rooms.
Finally applying the Gauss's summation theorem (1.6) to 's in (3.8), 's in (3.10), and 's in (3.12), after a simplification by making a main use of, we can readily show the summation formula (2.3) in Theorem 2.1.
It is not difficult, even though a little complicated, to prove the identities given here by making a main use of the following contiguous relation (see [1, equation, page 71]): (1.13).
For example, a main use of BPA is as a starting material in the manufacture of polycarbonate plastics and epoxy resins, accounting for 72% and 21%, respectively, of the BPA consumed in the United States in 2003 (NTP 2007).
As a metal, its main use is in jewellery.
As a result, the main use of IR sensors in robotics is for obstacle avoidance.
And as any ageing rocker knows, a back catalogue's main use is for milking in one's senescence.
One reason for the slowdown is that Enbrel is losing market share for its main use — as a treatment for rheumatoid arthritis, a different autoimmune disease, which accounts for as much as 70percentt of its sales.
In addition to its main use as a leafy green, it has also gathered religious and medicinal significance over centuries of human consumption.
The main introduction of cats onto Dirk Hartog Island happened, at latest, during its main use as a pearling site around 1850 and 1920.
