| 单词 | columbium |
| 释义 | columbium (once / 181836 pages) n WORD FAMILY columbium USAGE EXAMPLESTantalum, tan′tal-um, n. a very rare metal of no practical importance, discovered in 1801, closely allied to columbium or niobium. Various, Chambers's Twentieth Century Dictio...(2012) Columbium 741 tetroxide, Cb2O4 is obtained as a black powder when the pentoxide is heated to a high temperature in a current of hydrogen. Various, Encyclopaedia Britannica, 11th Edit...(2010) Chemically related to vanadium are the two elements tantalum and columbium or niobium. Various, Encyclopaedia Britannica, 11th Edit...(2010) n a former name for niobium Hyper Nb, atomic number 41, niobium a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium |
| 随便看 |
|
英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。