And what I want to show you is -- actually this is one of the components of it that we've just recently been testing -- which is a solar chimney -- we have got 17 of them now put around New York at the moment -- that passively draws air up.
我想给大家看的是 其实这是我们最近在试验的东西的一个部分 太阳能烟囱， 目前，我们在纽约的17处安放了它们 将空气被动地上抬。