The phrase "a set of underground" is not correct and lacks clarity in written English.
It may be intended to refer to a collection or group related to something underground, but it needs additional context to be meaningful.
Example: "The city has a set of underground tunnels that date back to the 1800s."
Alternatives: "a collection of underground" or "a group of underground".
Firstly, we are the first to propose and implement a set of localization devices for underground mines based on wireless self-organized sensor networks with the Safety Certificate of Approval for Mining Products, which means this set of devices can be used in a real underground mine in real-time.
Cross High Holborn, and make your way back one block toward Chancery Lane underground station, where a set of 16th-century Tudor-style black-and-white wooden buildings named Staple Inn (9 Staple Inn), loom above the station.
The entrance on the corner is a set of mysteriously cool-looking stairs that go underground.
A set of self-administered questionnaires was distributed to 2500 underground coal miners (1,936 effective respondents).
The underground facilities are composed of a set of tunnels and rooms separated by doors.
For another, a setting of Lou Reed's lyrics for the Velvet Underground song "Heroin" -- Mr. Lang is working on new settings of each of the 11 songs on the band's 1967 album "The Velvet Underground & Nico" and has done five so far -- he commissioned Mr. Aitken, the Los Angeles-born video artist whose work he admired but whom he had never met, and still has not.
He would rent a hall for a lecture-demonstration on Andy Warhol and Pop Art; then, after a brief presentation, the Plastics would "demonstrate" a full-length concert set of Velvet Underground songs.
(That accelerator has its own set of four underground detectors, each much smaller than Atlas).
The Deliberate Setup When the Russians reveal that they have invented a new doomsday machine, a series of underground bombs set to irradiate the world if the Soviet Union is attacked, the efforts to stop the American bombers become even more frantic.
It's now made the leap from the page to the immersive theater in a production set in The Vaults, a network of underground Victorian tunnels beneath a London train station that's now an arts space/immersive theater haven.
