Hurricanes have both a counter clockwise rotation at one level, we call this cyclonic spin and at another level they have a clockwise rotation, known as anti-cyclonic spin.

飓风既在一个层面上是逆时针旋转的，我们称之为旋旋转，同时在另一个层面上，它又是顺时针旋转，称为反旋旋转。

When I started to develop my cyclonic vacuum cleaner separation systems, separating dust from air, I went to the experts and they said you'll never make a cyclone that clears dust out of air below 20 microns.

当我开始开发我的旋风吸尘器分离系统时，分离空的灰尘，我去专，他们说你永远造不出能从空除 20 微米以下灰尘的旋风分离器。

He was so absorbed that he did not feel the second surge of wind either as its cyclonic strength tore the doors and windows off their hinges, pulled off the roof of the east wing, and uprooted the foundations.

他全神贯注， 以至于没有感觉到第二波狂风， 因为它的旋强度将门窗从铰链上撕下来，拉下东翼的屋顶， 连根拔起地基。

And the greater the wind shear of that column of air, the less likely it is to make a cyclonic storm, because it makes that swirling bit kind of wonky and the storm gets like discombobulated.

而且，那股空柱的风切变越大，就越不容易形成旋性风暴，因为风切变会使旋转部分变得扭曲，导致风暴结构混乱。

And as Golding's cyclonic arms blew them aft without touching them, Nicole was sorrier they had come, and more impatient at Dick.

当戈尔丁的旋风手臂将他们吹到船尾而没有碰到他们时，妮可更加后悔他们来了，对迪克更加不耐烦了。

So Harvey made landfall and then slowed, was downgraded to a tropical storm, but despite the tropical storm name, this cyclonic system continued to firehose Texas with the wettest North American cyclone on record.

于是哈维登陆后减速，被降级为热带风暴，但尽管名为热带风暴，这个旋系统仍持续向德克萨斯州倾泻暴雨，成为有记录以来北美最潮湿的旋。