For one thing, aeroponics uses specific equipment that has a high start up cost.

首先，无土要使用价格昂贵的特殊设备。

And we also have some backup farming with aeroponics and hydroponics.

我们还有一些气法和水法的备用农业。

So imagine almost like a vertical section through this landscape that goes from the air above, where we have vertical farms;below, we have the aeroponics and the aquaponics.

因此，想象一下从上方的空气中穿过这片景观的垂直剖面，我们在那里有垂直农场；在下方，我们有气法和鱼菜共生法。