isotope
同位素
常用释义
英音[ ˈaɪsətəʊp ]
美音[ ˈaɪsətoʊp ]
变形
复数:
isotopes
基本释义
- n. 同位素
例句
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1·As an indicator of shifts in the Earth's climate, the isotope record has two advantages.作为地球气候变化的指标，同位素记录有两个优势。
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2·Thus, more of the heavy isotope is left behind in the ocean and absorbed by marine organisms.因此，更多的重氧同位素留在了海洋里，并被海洋有机物吸收。
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3·Almost all the oxygen in water is oxygen 16, but a few molecules out of every thousand incorporate the heavier isotope 18.水中几乎所有的氧都是氧16，但每一千个分子中就有几个含有较重的同位素18。
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4·It is a global record: there is remarkably little variation in isotope ratios in sedimentary specimens taken from different continental locations.这是一个全球性的记录：在取自不同大陆位置的沉积标本中，同位素比率的变化非常小。
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5·The oxygen isotope ratio of the ocean changes as a great deal of water is withdrawn from it by evaporation and is precipitated as snow to form glacial ice.随着大量的水通过蒸发被抽离，并以雪的形式沉淀形成冰川冰，海洋中氧同位素的比率就发生了变化。
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6·When the air was warm, vapor containing the heavier isotope, oxygen-18, condensed and formed precipitation, in the form of snow, more readily than did vapor containing oxygen-16.当空气温度较高时，含有较重同位素氧-18的蒸汽比含有氧-16的蒸汽更容易凝结，并形成雪状的降水。
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7·The dated isotope record shows that the fluctuations in global ice volume over the past several hundred thousand years have a pattern: an ice age occurs roughly once every 100,000 years.同位素年代记录显示，过去几十万年全球冰量的波动有一个模式：冰河期大约每10万年发生一次。
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8·And this again is the fissile isotope.这也是易裂变同位素。
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9·The isotope does occur in nature but only extremely rarely.钋的同位素在自然界中的确存在，但是相当罕见。
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10·This creates regions with geographically similar isotope values.这将形成地理上同位素构成类似的区域。
网络释义
- stable isotope : 稳定同位素
- radioactive isotope : 放射性同位素
- isotope analysis : 同位素分析
- isotope separation : 同位素分离
- isotope geochemistry : 同位素地球化学
- isotope effect : 同位素效应
同义词
n.
[核]同位素
同根词
词根：
isotope
isotopic
adj
同位素的；同位旋的