- blimp(casings)forcinematographiccamerasblimp(casing)forcinematographicprojectorsScientistsintheblimpdidnotseeanything.anelongatedtetheredballoonorblimpwithcablesornetsuspendedfromittodeterlow-flyingenemyplanes.Thepressureoftheheliuminsideablimpisabou...
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