radioactivity
音標[,reidi?u?k'tiviti] 讀音漢語翻譯
n. 放射性
【化】 放射性
【醫】 放射性, 輻射性, 放射現象
英文解釋:
名詞 radioactivity:
- the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay同義詞:radiation
例句:
- A damaged reactor leaking radioactivity into the atmosphere.一座損壞的反應堆向大氣中泄露出發射性物質
- Russian-born American nuclear physicist known for his work on radioactivity and genetic information as well as his books popularizing theories of physics.
- Relating to or caused by radioactivity.放射產生的關於放射性的或由放射性引起的
詳細解釋:
ra.di.o.ac.tiv.i.ty
n.(名詞)Spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction.自動放射:自動地發出輻射,直接源於不穩定的原子核或是作為核反應的結果The radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.輻射:由一种放射性物質發出的輻射,包括α粒子、原子核、電子、和γ射線
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