| 单词 | cosmic ray |
| 释义 | cosmic ray (once / 16191 pages) n WORD FAMILY cosmic ray: cosmic rays USAGE EXAMPLESHe later entered graduate school at the University of California, Berkeley, to study cosmic ray particles and earned his doctorate in 1950. New York Times(Dec 28, 2016) The spacecraft studies chemical elements by counting the gamma-rays and neutrons reflecting off Ceres as cosmic rays bombard it. Nature(Dec 14, 2016) The radioactive element is produced when cosmic rays - that constantly shower the Earth - hit oxygen atoms in the flints' quartz minerals. BBC(Nov 07, 2016) n 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 Hyper ionizing radiation high-energy radiation capable of producing ionization in substances through which it passes |
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