The phrase "at the ceiling level" is correct and usable in written English.
It can be used to describe a position or measurement that is located at the height of the ceiling in a room or structure.
Example: "The lights were installed at the ceiling level to provide adequate illumination for the entire space."
Alternatives: "at ceiling height" or "at the height of the ceiling".
The new system allowed construction to occur at the ceiling level, without inhibiting work, or the pageant, from proceeding below, said Michael Mennella, executive vice president at Tishman.
At the domain-level, one patient scored at the floor on each domain while two patients scored at the ceiling level on both the physical and emotional domains.
A mixing air distribution system is currently used on airplanes, which supplies cool air at high momentum from the ceiling level and extracts the contaminated air at the deck level.
Locating the exhaust grilles at ceiling level and close to external wall while locating the return grilles at the upper boundary of the occupied zone are recommended in practice.
The SR peak was found at σ− = 0.22 and the noise ceiling level at σ− = 0.25.
With regard to the fire size at sprinkler actuation, the convective heat release rate of the fire is estimated from the gas temperature measured at ceiling level directly over ignition by using a plume correlation.
Loudspeakers were placed centrally, at ceiling level above the food hopper, facing down into the chamber.
Participants performed at ceiling level in the paper-and-pencil ToM story comprehension task that followed the fMRI session.
We increased σ− up to the SR peak (by analyzing the 0.1 Hz signal spectrum amplitude) and we kept increasing σ− until the 0.1 Hz signal spectrum amplitude was the same as at threshold (noise ceiling level).
In most of these buildings, the required lighting level is achieved with fixtures mounted at ceiling level; having all lighting at ceiling level allows flexibility in using building spaces.
Many studies have not observed sex differences when employing isolation protocols, and some have speculated this may be because isolation-evoked play is at a ceiling level for both males and females [ 45].
