isotopic abundance ratio例句翻译_写作句库

isotopic abundance ratio

1.The isotopic abundance ratio and content are determined with isotopic mass-spectrometry.

文章用同位素质谱法测定了辐照堆元件铀的同位素丰度比和含量。收藏指正

2.Eight equations computed isotopic abundance and two equations computed isotopic abundance ratio have been given.

给出八个计算丰度公式和两个计算同位素比公式。收藏指正

3.After leaching with diluted nitric acid,21 aerosol samples collected on glassfiber filter in Tianjin from November 1998 to February 1999 were analyzed for ?ρ?(Pb),?w?(Pb) and isotopic abundance ratio of ????206?Pb/????207?Pb.

对天津市1998年11月—1999年2月期间21个玻璃纤维滤膜大气颗粒物样品,采用稀酸浸出法溶解后,测量了ρ(Pb),w(Pb)和同位素丰度比206Pb 207Pb。收藏指正

4.The 48 h air mass back trajectory map provided plenty of detailed meteorological information and ,combined with ?ρ?(TSP),?ρ?(Pb) and ?w?(Pb) as well as lead isotopic abundance ratio,can be used to characterize lead pollution in air. ?

48h反向风迹图提供了大量详实的气象信息,结合ρ(TSP),ρ(Pb),w(Pb)和同位素丰度比的数据,可用于综合表征铅污染的状况。收藏指正

5.To the great scale of the universe age, 187 Re- 187 Os isotopic pair, which have very long half life, was used as a cosmic nuclear clock of cosmochronometr. It is a typical relationship between modern astronomy and nuclear physics. The neutral isotope abundance ratio of 187 Re over daughter nucleus 187 Os in common growth mineral can be used as the clock to measure the time.

以很长半衰期 ( 4 2× 1 0 9a)的 β-衰变的 187Re- 187Os核对作为大尺度的宇宙核钟来量度宇宙的年纪 ,是近代天文学与核物理学相结合的又一典范 .收藏指正

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isotopic abundance ratio