网络释义专业释义
同位素的丰度 abundance of isotopes ; isotopic abundance
同位素的相对丰度 abundance ratio of isotopes
同位素的原子量 isotopic atomic weight ; isotopic weight
非同位素的 non isotopic
单一同位素的 monoisotopic
放射线同位素的纯度 radioisotopic purity
分离同位素的电磁装置 calutron
氢的同位素 Isotopes of hydrogen ; Hydrogen isotope
钙的同位素 isotopes of calcium
铊的同位素 isotopes of thallium
双语例句原声例句
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通过测量一束头发上较重的氢和氧同位素的比例，科学家可以构建一个地理时间轴。
By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline.
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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。
The oxygen isotope ratio of the ocean changes as a great deal of water is withdrawn from it by evaporation and is precipitated as snow to form glacial ice.
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但是同位素的用处更多。
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Isotopes have the same chemical identity but different nuclear properties.
同位素有相同的化学特性,但是原子属性不同。
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A couple of other things about hydrogen: hydrogen also, like other elements, has isotopes and we already saw that in 1766, Cavendish isolated atomic hydrogen and enunciated some of its properties.
一些关于氢的东西：,氢气，就像其他元素一样，有同位素，人们在1766年就发现了这一点，卡文迪许分离出原子氢,并且阐述了它的一些性质。
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