翻译和例句:
. There are many ways to do this. They analyze the amount of certain elemental isotopes (元素的同位素) &ndash... isotopes (稳定同位素) in animal and human bones to find out what they ate during their lifetime ……
and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes (同位素... water to California than to Utah. 这段文字主要告诉我们:降水当中的氢元素同位素含量随着降落位置的不同会有变化。关键在于最后一句:加利福尼亚州的降水要比犹他州的“重”。这句 ……
(含量) of certain elemental isotopes (元素的同位素) such as carbon-14 (c-14). Another way is tree-ring... the amount (含量) of certain elemental isotopes (元素的同位素) such as carbon-14 (c-14). Another way is tree-ring ……
governments are expected to ratify the treaty on fishing rights soon.13.helium 3 isotope: 氦三同位素14.regime ……
forms of a single element are called isotopes (同位素). ______ (But; Whether; And) depending on where ……
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