| 摘要 |
The nozzle for producing an air stream comprises a body (10) defining a rectangular opening in which is located a rectangular body (13) to define a pair of outlets (14). The opening communicates with an air inlet (12) and air in use flowing through the outlets (14) flows over inclined surfaces (16) and then declined surfaces (18) of slightly concave form. Air from the surroundings is entrained with the air flowing over the surfaces. |
