| 摘要 |
The aerial advertisement (1) trailed behind the aircraft (12) incorporates a holder with jets (13) ejecting visible substances. The jets are arranged across or aslant the direction of flight on a holder (14) in the form of a bar, profile, structure or pipe and has stabilizing wings. whose aerodynamic surfaces are at the holder's free ends (20,21). The holder is joined to the pulley (11) by means of spaced apart support points (17).
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