columbium
导读：columbium读音音标英[kə\\\'lʌmbɪəm]美[kə\\\'lʌmbɪrm]
基本意思释义n.铌英英释义Noun1. a former name for niobium
基本意思释义n.铌英英释义Noun1. a former name for niobium
columbium读音音标
英[kə\\\'lʌmbɪəm]
美[kə\\\'lʌmbɪrm]
基本意思释义
n.铌
英英释义
Noun
1. a former name for niobium
