the property of a more than adequate quantity or supply; "an age of abundance"
適切な量や供給量を超えている特質
abundance
(physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present
同位元素の数が提示する合計への要素の特定の同位元素の原子数の比率
abundance
(chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million