ultra high-energy cosmic rays
ultra high-energy cosmic rays
超高能宇宙射线
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Interestingly, an April 18 paper in the journal Nature reported that upper limits for neutrinos measured from IceCube are low enough that gamma-ray bursts are unlikely to be the sole source of ultra-high energy cosmic rays.
CNN: Why gamma-ray burst shocked scientists