age of cosmic ray irradiation
cosmic ray
宇宙线
宇宙射线
银河宇宙线
宇宙<射>线
地面宇宙线
宇宙线[天]
宇宙﹝射﹞线
宇宙光
cosmic ray decay electron
cosmic ray energy spectrum
cosmic ray exposure age
cosmic ray extensive air shower
cosmic ray knock on electron
cosmic ray muon radiography
cosmic ray of “knee region