The phrase "a set of external" is correct and usable in written English.
It can be used when referring to a collection or group of external items, factors, or influences in various contexts.
Example: "The researchers analyzed a set of external variables that could impact the study's outcomes."
Alternatives: "a collection of external" or "a group of external".
Two external shading devices are evaluated, a set of external perforated curved louvers and a set of venetian blinds.
Responsibility for this competitive listlessness belongs not just to a set of external conditions but also to the attitudes, preoccupations, and practices of American managers.
We'd call it the opposite of a perfect storm: a set of external circumstances that together create an exceptionally favorable economic environment.
And then typically, a set of external disturbances that might represent, for example, air currents, or wind, or whatever, that will attempt to destabilize the system.
The prototype required the incorporation of a 3D optical stereo adapter and a set of external near-infrared filters onto the optics of a conventional video camera.
The LP-investigations yielded a set of external parameters for homogeneously grown hard films at deposition rates of approximately 1.5 μm/h.
Since 1995, DIII-D has performed correction of magnetic field imperfections using a set of six external picture frame coils located on the vessel mid-plane.
In the SCFT, one considers the statistics of a single copolymer chain in a set of effective external fields w i, where i represents block species A, B, and C or grafted polymers.
Additionally, a set of useful external links to other databases is given.
Assay performance of a set of selected external RNA transcripts or pools with the same or different concentrations will be evaluated by microarray and QRT-PCR.
The activity of the compound was modeled as a set of unknown external perturbations acting on one, or few genes, in the network.
