delta notation
(chemistry) A notation for denoting the prevalence of an isotope, equal to the normalized ratio of one isotope to another in a sample relative to that same ratio in a standard.
A book of facts.
(South Africa) Icerya purchasi, the cottony cushion scale insect.
A surname.
炭酸塩試料を分析する際、研究所は炭素13の値を、試料中のある同位体と別の同位体の比を基準と比較して規格化して示す表記を用いて報告した。
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