____ ____ ____ = ____
Come here, children! Look at the elephant.
Wow! It has eyes and ears.
下图示意我国新疆某地区地形状况及风向频率，甲地有大片的绿洲，每年大风日数约160天左右，年平均风速达到6.2米/秒，夏季多干热风，是我国最早进行风能开发的区域。
