资料来源 : pyDict

铪

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Celtium \Cel"ti*um\, n. [NL.] (Chem.)
   A supposed new element of the rare-earth group, accompanying
   lutecium and scandium in the gadolinite earths. Symbol, Ct
   (no period).