常見例句

雙語例句

• The isotope fractionation effect is primary factor affecting accuracy of hydrogen isotope analysis.
  同位素分餾效應是影響氫同位素準確分析的主要因素。
• Isotope analysis of her hairrevealed that she spent the years before she died in America's westernmountains, which helps detectives concentrate their search.
  對她的毛發(fā)同位素分析顯示在她被殺之前她在美國西部的山區(qū)生活了數(shù)年，這將幫助縮小搜索范圍。
• "From isotope analysis, we were able to get a good idea of its feeding ecology, and it fits very well at the top of the feeding chain of marine mammals" like polar bears today, she notes.
  “通過同位素的分析，我們已經(jīng)能夠大致掌握它的攝食生態(tài)了，而這也很符合位于食物鏈頂端的海洋哺乳動物的情況”就像現(xiàn)在的北極熊一樣，她說。

權威例句

• Tests on the sand they were buried in, using two different dating techniques (thermoluminescence and oxygen-isotope analysis), suggest they are between 70, 000 and 80, 000 years old.
  ECONOMIST: A cave in South Africa may rewrite human history
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