| 释义 |
cosmic rayn.（名词）- A stream of ionizing radiation of extraterrestrial origin, consisting chiefly of protons, alpha particles, and other atomic nuclei but including some high-energy electrons, that enters the atmosphere, collides with atomic nuclei, and produces secondary radiation, principally pions, muons, electrons, and gamma rays.宇宙射线：来自地球以外的电离辐射流，主要包括质子，粒子和其他原子核，但也含有一些高能电子，进入大气层，与原子核相撞，产生次级辐射，主要有π介子，μ子，电子和γ射线
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