At the same time, being flatter than a sphere, the aerostat ACTS less like a sail than a traditional balloon does, making it easier to steer.
同时，由于比球体扁平，此高空气球不像传统气球般随风飘动，它更容易操控。
The balloon will spend a few hours rising to a cruising altitude of around 36 km, where the sail will be 129 meters [423 feet] in diameter.
气球将会花费几个小时升到大约36千米的巡航高度，那里行船直径将达到129米【423英尺】。
Strong fabric coated with varnish. Come from a hot-air balloon, highly strong, it would make a good sail for.
涂了清漆的坚固的布料。来自热气球，非常坚固，可以做一个很好的档风蓬。
Strong fabric coated with varnish. Come from a hot-air balloon, highly strong, it would make a good sail for.
涂了清漆的坚固的布料。来自热气球，非常坚固，可以做一个很好的档风蓬。
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