Task: Translation
Input (Czech): Ventila n  a osv tlovac  podhled sest v  ze soustavy samonosn²ch paraleln ch vzduchovod  (1) ve tvaru lichob  n ka a mezilehl²ch panel . Pr b  n  spodn   laby (2) a horn   laby (3) vzduchovodu (1) jsou vz jemn  propojeny spojkami  (4). Mezilehl  panely podhledu z transparentn ch desek (7) ve tvaru segment  jsou lemov ny li tami (8) a obloukov²mi ramen ty (9) a jsou pomoc  oto n²ch z v s  (10) uchyceny k horn m  lab m (3) vzduchovod  (1).\
Output (English): Valve n and illuminator soffit in a set of self-supporting parallel trapezoidal air ducts (1) and intermediate panels. The lower labs (2) and the upper labs (3) of the duct (1) are interconnected by couplings (4). Intermediate panel soffit panels made of transparent panels (7) in the form of a segment are bordered by ties (8) and arcuate arms (9) and are supported by the swiveling (10) to the upper m (3) duct (1) .