Architect Vincent Callebaut recently unveiled a blue-sky plan for a high-flying fleet of self-sufficientaircraft that are one part zeppelin cities and one part hydrogen-generating floating farms.

建筑设计师文森特·卡勒博（Vincent Callebaut）最近公布了一个极为理想的计划，其中的建筑为一群悬在高空的、能够自给自足的飞行器；这些飞行器一半是飞艇城市，一半是能够产生氢气的悬浮农场。

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