| environ. | 宇宙辐射 | cosmic radiation Radiations consisting of atomic nuclei, especially protons, of very high energy that reach the earth from outer space. Some cosmic radiations are very energetic and are able to penetrate a mile or more into the Earth (来自外太空而具有非常高能量的、由原子核-特别是质子所组成的辐射。有些宇宙辐射具有极高的能量，可以穿透地球超过一英里深。) |
