| 摘要 |
<p>The invention refers to a wind tunnel designed to operate in its vertical section that is to say, air currents generated by appropriate means meeting in a vertical area at the end of which the air current is capable of lifting objects in this vertical area. At the same time this lifting effect may be seen on the outside as it has been built from translucent materials. The viewing and lifting of bodies in this device allows both their display and measurements to be taken.</p> |
