Traditional Culture Encyclopedia - Hotel franchise - Brief introduction of floating hydrogen balloon in the air
Brief introduction of floating hydrogen balloon in the air
Air floating hydrogen balloon is a relatively large hydrogen balloon that is filled with hydrogen by a hydrogen bottle or a special hydrogen balloon filling machine, fixed on the ground or objects with a rope, and floats in the air. Generally, it is used to hang banners at celebration sites and to observe or install radio transmitting antennas in the military.
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