• n. [化学] 氢

hydro-,水，-gen,生成，词源同generate.因氢接触氧气生成水而得名。

hydrogen

hydrogen: [18] Greek húdōr ‘water’ (a distant relative of English water) has been a prolific source of English vocabulary. Amongst its contributions are hydrangea [18] (literally ‘water-vessel’, so named from the cuplike shape of its seedpods), hydrant [19], hydrate [18], hydraulic [17] (literally ‘of a water-pipe’), hydrofoil [20], and hydroponics [20] (literally ‘water-culture’). Hydrogen itself means literally ‘generating water’, and was coined in French as hydrogène in the late 1780s for hydrogen’s property of forming water when oxidized. It is first recorded in English in 1791.
=> water

hydrogen (n.)

1791, from French hydrogène, coined 1787 by G. de Morveau, Lavoisier, Berthollet, and Fourcroy from Greek hydr-, stem of hydor "water" (see water (n.1)) + French -gène "producing" (see -gen). So called because it forms water when exposed to oxygen. Nativized in Russian as vodorod; in German, it is wasserstoff, "water-stuff." An earlier name for it in English was Cavendish's inflammable air (1767). Hydrogen bomb first recorded 1947; shortened form H-bomb is from 1950.

1. Hydrogen is used extensively in industry for the production of ammonia.

氢气在工业上广泛用于制氨。

来自柯林斯例句

2. He mobilized public opinion all over the world against hydrogen-bomb tests.

他动员全世界的舆论反对氢弹试验。

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3. A hydrogen leak forced NASA to ground the space shuttle.

氢气泄漏迫使美国国家航空航天局停止了航天飞机的发射。

来自柯林斯例句

4. Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats.

碳、氢、氧化合形成碳水化合物和脂肪。

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5. In May engineers found a leak in a hydrogen fuel line.

5月份工程师们在一条氢燃料管线上发现一条裂隙。

来自柯林斯例句