在第21周太阳活动峰年期间，“太阳峰年”卫星和“火鸟”卫星上的硬x射线爆发探测器探测到数千个硬x射线太阳耀斑。
During the 21st solar activity cycle the HXEBS aboard SMM satellite and the HXM on HINOTORI spacecraft detected several thousand hard X-ray solar flares.
臭氧层能遮挡住来自太阳的有害射线。
水不能有效阻挡太阳中更有害的射线。
Water is not an effective shield against the sun's more harmful rays.
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