+5 = 13 

ㄅㄨˋ

  1. (plutonium,Pu)​化學元素原子序94。種人放射性金屬元素元素微量存在鈾礦重氫撞擊-238可作核子反應爐燃料製造核子武器

metal plate, plutonium (chemistry)​ (Tw)​
plaque métallique, Plutonium
Plutonium (Element 94, Pu)​ (S, Chem)​, Metallplatte (S)​