名詞 europium:

1. a bivalent and trivalent metallic element of the rare earth group
   同義詞：Eu, atomic number 63

eu.ro.pi.um

n.Symbol Eu （名詞）符號(hào) Eu
A silvery-white, soft, rare-earth element occurring in monazite and bastnaesite and used to dope lasers and to absorb neutrons in research. Atomic number '3; atomic weight 5.9'; melting point 82'=C; boiling point ,439=C; specific gravity 5.259; valence 2, 3.See table at element
銪：存在于獨(dú)居石和氟碳礦中一種銀白色、柔軟的稀有金屬，在研究中常用于激光器添加劑以吸收中子。原子序數(shù)'3；原子量5.9'；熔點(diǎn)82'=C；沸點(diǎn),439=C；比重5.259；化合價(jià)2,3參見 element

來源：
After Europe
源自 Europe