Meteorological records in the past 50 years indicate that there has been a sharp decrease in sand dust storm frequency, which is in accordance with the decrease in annual mean wind speed.

近50年来多个站点的观测记录表明了沙尘暴的发生频率处于快速下降的过程，这恰好与年均风速的变化趋势较为一致。

youdao

How long do you need to establish the mean wind?

需要多长时间来确定平均风？

youdao

The maximum (minimum) of mean wind energy density is 298.

平均风能密度最大值达298。

youdao

In later levels of Hebrew it will start to mean that wind But it is really "wind," ruah is wind.

但是在后来的希伯来语中它便有这个意思,事实上它是指“风“，ruah是指气。

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Besides, throwing us all in a room together just because we all gave birth to tiny humans doesn't mean we'll wind up besties.

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Even coming close to the European targets, say government advisers, would mean a sevenfold rise in onshore wind capacity and a 46-fold rise in offshore.

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Of course, this doesn't mean investors should throw caution to the wind when trading a low-volume ETF.

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