The phrase "a lower section of" is correct and usable in written English.
It can be used to describe a part or area that is situated lower than another section, often in a physical or metaphorical context.
Example: "The architect focused on designing a lower section of the building to accommodate the parking garage."
Alternatives: "a bottom part of" or "an inferior segment of".
The signals sent between a laptop and an access point in the Ricochet network use the 900-megahertz band -- a lower section of the radio spectrum.
For WF fatigue, there are several factors affecting the location of the critical position, and it can occur at the fairlead location or at a lower section of a mooring line.
The church's east window is a pointed arch with a lower section of three trefoil-headed lights and two smaller lights on top.
The core development, including new office towers, a revamped Nassau Coliseum and outdoor greensward plazas above a lowered section of the Hempstead Turnpike, would become what Mr. Suozzi described as the Nassau crossroads.
This is the actual deltaic portion of the sequence with a lower section comprising of shale and sandstone beds deposited in equal proportions and an upper portion which is mostly sandy, with only minor shale intercalations.
Their name refers to their pectoral fins, each of which is divided into an upper, normally shaped fin and a lower section consisting of four to seven long, threadlike rays that serve as sensory devices; they are especially long in the young.
The flume was divided into an upper and a lower section; the slopes of which could be altered.
The shallow conductive region is divided into an uppermost slightly conductive section that is thought to be a lacustrine sediment layer of an extinct crater lake containing hydrothermal fluids and a lower section containing a mix of volcanic gases and hydrothermal fluids.
With Robin Soderling about to serve at 1-2, 15-0 in the second set, an intruder ran down a staircase in the lower section of the stands at Philippe Chatrier court, jumped over the barrier and onto Roger Federer's half of the court.
Only a part of de l'Orme's scheme was ever built: the lower section of a central pavilion, containing an oval staircase, and a wing on either side.
Maze appeared devastated after losing nearly half a second on the lower section of the piste.
