cosmic rays
英 [ˌkɒzmɪk ˈreɪz]
美 [ˌkɑːzmɪk ˈreɪz]
n. 宇宙线
牛津词典
noun
- 宇宙线
rays that reach the earth from outer space
柯林斯词典
- 宇宙射线
Cosmic raysare rays that reach earth from outer space and consist of atomic nuclei.
英 [ˌkɒzmɪk ˈreɪz]
美 [ˌkɑːzmɪk ˈreɪz]
n. 宇宙线
noun