abundancen.丰富；充裕abundance contrast features丰度对比特征abundance/biomass curves丰度／生物量曲线abundance of organic matter有机质丰度abundance ratio of isotopes同位素相对丰度,同位素的相对丰度abundance-frequency ratio多度-频度比Abundance of money ruins youth.钱多毁青年。abundance index of Ommastrephes bartrami柔鱼资源Abundance of things engender disdainfulness.物以稀为贵。Abundance of things engenders disdainfulness.事物凡多必贱。

1. The isotopic abundance ratio and content are determined with isotopic mass-spectrometry.
   文章用同位素质谱法测定了辐照堆元件铀的同位素丰度比和含量。
2. The abundance and availability of water and nutrients in a soil ecosystem determine its fertility.
   土壤生态系统中水分和养分的丰度和有效性决定土壤的肥力。