| 单词 | beta ray |
| 释义 | beta ray (once / 236387 pages) n WORD FAMILY beta ray: beta rays USAGE EXAMPLESEventually alpha rays were identified as helium atoms stripped of their electrons—that is, helium nuclei-—and beta rays as energetic electrons. Michael Hiltzik, Big Science(2015) Most famously Beta Ray Bill picked up the hammer and was Thor for a while. Time(Jul 15, 2014) Tepco said the radiation measured was beta rays, which would be easier to protect against than gamma rays. Scientific American(Sep 01, 2013) n radiation of beta particles during radioactive decay Syn|Hyper beta radiation, electron radiation ionizing radiation high-energy radiation capable of producing ionization in substances through which it passes corpuscular radiation, particulate radiationa stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons) |
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