質量數 [质－数]

Jyutping zat1 loeng6 sou3
Pinyin zhí liàng shù

Definitions (Wiktionary)
  1. noun
    mass number

質量數 [质－数]

Jyutping zat1 loeng6 sou3
Pinyin zhì liàng shù

Definitions (CC-CEDICT)
  1. atomic weight of an element
  2. atomic mass
Definitions (Wiktionary)
  1. noun
    mass number