不过，在一些位置，由于接近风暴中心的风轻微变向，风速变化多达每小时20公里。

In a few locations, though, the velocities changed by as much as 20 MPH because of minor redirections of the winds near the storm's center.

youdao

在比较理想的条件下，每小时10——20颗流星雨可以看到；但是专家们说观测条件变化比较大。

Between 10 and 20 meteors per hour can be visible under ideal conditions; but experts say the shower is fickle.

youdao

我建议我们使用他们的平台接收从海地传来的短信，获得一个每小时情绪变化情况的整体感知。

I suggested that we use their platform on the incoming text messages from Haiti to get a general sense of changing mood on an hourly basis.

youdao