| 摘要 |
A system for supplying air under the ceiling of a room comprising a pair of air inlet openings arranged side by side and configured to supply a pair of air streams into the room along the ceiling. The pair of air inlet openings are controllable to assume a first configuration where the supplied pair of air streams have first air stream directions spanning a first span angle and form a first angle with the ceiling, and the pair of air streams are substantially distinct air streams; and a second configuration where the supplied pair of air streams have second air stream directions spanning a second span angle smaller than the first span angle and form a second angle with the ceiling and are directed lower than in the first configuration, and the pair of air streams combine to form a combined air stream. |
