This is the 10699th most frequent Turkish word.
dairesinde
"In his/her/its circle" or "in his/her/its flat/apartment," depending on context.
Here, 'dairesinde' indicates the location related to a specific enclosed space, the library's apartment.
Ali kütüphanenin dairesinde kitap okuyordu.
Ali was reading a book in the library's apartment.
In this sentence, 'dairesinde' refers to a specific unit within a building, the specific apartment.
Yeni satın aldığımız oturduğumuz binanın dairesinde tadilat yapıyoruz.
We are renovating the apartment in the building we recently bought and live in.
Here, 'dairesinde' denotes a spatial localization within the laboratory's designated area.