元素存在形式（mode of occurrence of elements）是指在地球化学异常中，异常元素产出的形式和存在方式。
双语例句原声例句
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在水中大多数氢原子和氧原子是稳定的，但这两个元素也有微量以较重的同位素形式存在。
Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.
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通过对它的辐射热光谱取样，研究人员发现这颗行星的大气层中以一氧化碳和甲烷的形式存在着大量碳元素。
By taking the spectrum of heat radiating from the planet, the researchers found that the planet's atmosphere was loaded with carbon, in the form of carbon monoxide and methane.
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更可能的是，布兰克·费恩只是将实践中已经存在的某些元素形式化。
More likely, Blankfein just formalized certain elements that already existed in practice.
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So if we consider lithium, potassium, and sodium, they're all together in the same group on the periodic table, knowing what we do about biology we can immediately think of sodium and potassium, or even just knowing what you know about table salt, for example, that these are two elements that we find, and particularly in the ion form in very high concentrations in our body.
我们来考虑一下锂，钾和钠，它们都在周期表中的同一族里，想要知道我们将元素周期律,用到生物学会怎么样，我们首先想到的就是钠和钾，甚至只需要知道食盐，我们发现它们是以很高浓度的离子形式,存在于我们体内的两种元素。
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