单词	becquerel
释义	becquerel noun bec·​que·​rel (ˌ)be-ˈkrel  ˌbe-kə-ˈrel, ˈbe-kə-rel plural becquerels : a unit of radioactivity of a given sample of material equal to one atomic decay (see decay entry 2 sense 5b) per second The resulting trench is still contaminated with about 100 becquerels of radioactivity per gram of soil, much higher than normal. Rob Edwards compare curie sense 2 —abbreviation Bq Word History Etymology after Antoine-Henri becquerel First Known Use 1975, in the meaning defined above Biographical Definition Becquerel biographical name Bec·​que·​rel be-ˈkrel  ˌbe-kə-ˈrel family of French physicists including: Antoine-César 1788–1878; his son Alexandre-Edmond 1820–1891; the latter's son Antoine-Henri 1852–1908
随便看	retrogradatory retrograde retrograde canon retrograde inversion retrograded retrogradely retrogrades retrograding retrogress retrogressed retrogresses retrogressing retrogression retrogressions retrogressive retrogressively retrohypophyseal retroinfection retroject retrojected retrojecting retrojection retrojections retrojects retromingent

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