The sun is currently approaching what's known as solar maximum, the peak of our star's roughly 11-year cycle of magnetic activity.

因为目前的太阳正逐渐接近它的“活动峰年”，也就是周期约为11年的地磁活跃高峰期。

youdao

The temperature variations during a year have maxima at the poles, where the annual variation of the inflow of solar energy is also maximum.

两极地区一年温度变化极大，太阳能入射量的年变幅也极大。

youdao

As Holdren and Beddington note, the solar maximum, and increased possibility of a great geomagnetic storm, is fast approaching, now less than a year away.

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