1808, coined in Modern Latin by its discoverer, English chemist Sir Humphrey Davy (1778-1829), because it was present in the mineral barytes "heavy spar" (barium sulphate), so named by Lavoisier from Greek barys "heavy," from PIE root *gwere- (2) "heavy" (see grave (adj.)). The metal is actually relatively light.
雙語例句
1. Explain why barium forms peroxide but beryllium does not.
解釋為什么鋇能形成過氧化物而鈹則不能。
來自辭典例句
2. Common ceramic elements are barium titanate and lead zirconate - titanate.
普通的陶瓷元件分別是鈦酸鋇和鋯鈦酸鉛.
來自辭典例句
3. There is reflux of barium into the terminal ileum.
鋇劑反流進(jìn)入回腸末端.
來自辭典例句
4. Barium is found in some oilfield brines in concentrations greater than 100 mg / litre.
在有些油田鹵水中,鋇的濃度大于100毫克/升.
來自辭典例句
5. Diagnosis can usually be made by barium swallow and tracheogram.