deuterium
英 [dju?'t??r??m]
美[dj?'t?r??m]
- n. [核] 氘；[核] 重氫
IELTS
中文詞源
deuterium 氘，重氫
deuter-, 二，詞源同two. 因這種物理元素其質(zhì)量為氫的兩倍而得名。比較tritium.
英文詞源
- deuterium (n.)
- 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(yǔ)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(lái)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(lái)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(kāi)沅環(huán).
來(lái)自辭典例句
- 4. Deuterium is widely used in the study of reaction mechanisms and in spectroscopic studies.
- 氘廣泛地應(yīng)用于反應(yīng)機(jī)理的研究和光譜分析.
來(lái)自辭典例句
- 5. The substituent is deuterium.
- 取代基是重氫.
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