太たい陽よう活かつ動どう

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Meanings

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solar activity

Technical term in astronomy referring to phenomena on the sun's surface such as sunspots, flares, and coronal mass ejections.

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The solar activity cycle is about 11 years.

太たい陽よう活かつ動どうが活かっ発ぱつになると、通つう信しん障しょう害がいが起おこることがあります。

When solar activity becomes intense, communication disruptions can occur.