abundance
英[ə'bʌnd(ə)ns]
美[ə'bʌndəns]
- n. 充裕，丰富
英英释意
- 1. the property of a more than adequate quantity or supply;
- "an age of abundance"
- 2. (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present
- 3. (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