相对于我们熟知的球形或者雪茄形的内部充满轻于空气的高空气球，Skylifter开发的是一个铁饼状的。
Rather than use either a spherical or a cigar-shaped aerostat, as the gas-filled envelope of a lighter-than-air craft is known, Skylifter has developed a discus-shaped one.
相对于我们熟知的球形或者雪茄形的内部充满轻于空气的高空气球，Skylifter开发的是一个铁饼状的。
Rather than use either a spherical or a cigar-shaped aerostat, as the gas-filled envelope of a lighter-than-air craft is known, Skylifter has developed a discus-shaped one.
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