cosmic ray
n. 宇宙光
cosmic ray
n. 宇宙光
cosmic raycosmic rayn.1.翻译：宇宙光
cosmic ray
1.翻译：[美国英语]【核物理学】宇宙(射)线
noun
a highly energetic atomic nucleus or other particle travelling through space at a speed approaching that of light
宇宙（射）线
cosmic ray
名词 cosmic ray:
highly penetrating ionizing radiation of extraterrestrial origin; consisting chiefly of protons and alpha particles; collision with atmospheric particles results in rays and particles of many kinds