《francium》怎以读
英 [ˈfrænsiəm]
美 [ˈfrænsiəm]
《francium》是什么意思
（放射性元素）钫（符Fr）；
英英释义
francium[ 'frænsiəm ]
- n.a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
同义词：Fratomic number 87
学习《francium》怎么用
权威例句
FranciumfranciumfranciumLifetime measurements of the 7 p levels of atomic franciumSpectroscopy with trapped francium: advances and perspectives for weak interaction studiesHyperfine anomaly measurements in francium isotopes and the radial distribution of neutronsEnhancement factor for the electron electric dipole moment in francium and gold atomsCalculation of energy levels, E1 transition amplitudes, and parity violation in franciumSCF Hartree-Fock results for elements with two open shells and the elements francium to nobelium ☆Relativistic many-body calculations of the hyperfine-structure intervals in caesium and francium atoms