oxygen-17
(physics) A rare stable isotope of oxygen, ¹⁷₈O, having eight protons and nine neutrons; it amounts to 0.037% of the element in nature
comparative form of ballsy: more ballsy
(biochemistry) polyribonucleotide
present participle of podcast
科学者たちは土壌中の水の移動を調べるために質量数17の酸素同位体をトレーサーとして使った。
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