| 释义 |
rubidium/rʊˈbidiəm/n. Chem. a soft silvery element occurring naturally in various minerals and as the radioactive isotope rubidium-87 (symbol 符 Rb) 【化】(化学元素)铷(天然存在于矿物中的银色柔软元素，放射性同位素铷 -87) [Latin rubidus ‘red’ (with reference to its spectral lines)] |