| 摘要 |
A device for covering an object which is transported in an air stream, including a cover which at least partially traverses the object, and a differential pressure device disposed on the cover which creates a pressure differential between the air under the cover and the air passing over or around the cover, where the pressure differential causes the air under the cover to exhaust to an exterior of the cover, drawing the cover toward the object, and where the pressure differential device creates the pressure differential when the covered object is transported in a frontward position with respect to a direction of travel and in a rearward position with respect to the direction of transport.
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