| 摘要 |
An air diffuser includes a body having a body having a substantially flat upper surface and a concave lower surface. A plurality of slots is formed through the body in fluid communication with the upper and lower surfaces. A flow modulator is rotatably affixed to the lower surface, the flow modulator having a plurality of slots configured to selectably cover the slots in the body. The flow modulator and a junction between the flow modulator and the lower surface are configured to provide a substantially constant flow velocity through the slots independent of a rotational position of the flow modulator.
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