The phrase "a very specific class" is correct and usable in written English.
You can use it when referring to a particular category or group that has distinct characteristics or criteria.
Example: "In our research, we focused on a very specific class of organisms that thrive in extreme environments."
Alternatives: "a highly defined category" or "a particular type".
These methods are very efficient because they deal with a very specific class of shapes.
By the end, Taylor's snob seems to have become a very specific class of person, one who keeps labradors, eats potted shrimps and cares about whether someone went to Winchester or Eton.
Although the script simulates only a very specific class of user, the mix of system services invoked (note that actual running of the user's program is a small part of the script) is similar to that invoked by a wider class, so that if a system change improves the performance of the script, it can be expected to similarly improve the performance of the system under actual load.
The most-visualized black hole of all, as illustrated in the movie Interstellar, shows a predicted event horizon fairly accurately for a very specific class of rotating black holes.
For a very specific class of strategies ξ, the following proposition gives necessary and sufficient conditions for the existence of ({int _{0}^{t}}boldsymbol {xi }(s){,mathrm {d}} mathbf {S}(s)).
The word "workstation" is often used interchangeably with the word "computer" in a lot of general conversations, and this is more true than ever with the hegemony of the x86 architecture; but the word "workstation" here describes a very specific class of computer.
These methods are very efficient because they deal with the very specific classes of shapes.
For example, in a way, Mark Leckey's whole practice is born out of a very specific working-class subculture that's strongly tied to music and the rave scene.
To revisit "A Bear Called Paddington," in which Paddington makes his first appearance, and which was published in 1958, is to be transported to a very specific upper-middle-class English milieu.
