1933, coined by U.S. chemist Harold C. Urey, with Modern Latin ending + Greek deuterion, neuter of deuterios "having second place," from deuteros "next, second," according to some sources from duo (see two), but according to Watkins the ground sense is "missing" and the Greek word is from PIE from *deu-tero-, suffixed form of root *deu- "to lack, be wanting." So called because it is twice the mass of hydrogen.
雙語例句
1. More reactive are the heavier isotopes of hydrogen, deuterium and tritium.
更為活躍的是氫的較重同位素, 氘和氚.
來自辭典例句
2. To produce deuterium requires an environment of high energy.
為了產(chǎn)生氘,需要一個(gè)高能的環(huán)境.
來自辭典例句
3. The rings are opened with hydrogen chloride and deuterium chloride.
應(yīng)用氯化氫和氯化氘打開沅環(huán).
來自辭典例句
4. Deuterium is widely used in the study of reaction mechanisms and in spectroscopic studies.