搜尋結果
beta particle
- IPA[ˈbādə ˌpärdəkəl]
美式
- a fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.).
noun: beta particle, plural noun: beta particles
- 更多解釋
- a fast-moving electron emitted by radioactive decay of substances (originally regarded as rays).
Oxford Dictionary