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氧气

yǎng qì

HSK 6

Meaning

  • oxygen

Definition

氧气是一种无色无味的气体，化学式为O2，是生物呼吸和燃烧过程中必需的物质。

Oxygen is a colorless, odorless gas with the chemical formula O2, essential for respiration and combustion.

Usage

氧气通常用于描述空气成分、呼吸作用、氧化反应以及在医疗和工业中的应用。

Oxygen is commonly used to describe air composition, respiration, oxidation reactions, and its applications in medical and industrial fields.

Examples

  • 1 植物在光合作用过程中释放氧气。 (Plants release oxygen during photosynthesis.)
  • 2 在高原地区，氧气含量较低，人们需要补充氧气。 (In high-altitude areas, oxygen levels are low, and people need to supplement oxygen.)
  • 3 医院里使用氧气面罩帮助呼吸困难的患者。 (Hospitals use oxygen masks to help patients with breathing difficulties.)
  • 4 燃烧需要氧气，所以灭火时可以用隔绝氧气的方法。 (Combustion requires oxygen, so fire can be extinguished by cutting off oxygen supply.)
  • 5 潜水员必须携带氧气瓶才能在水下呼吸。 (Divers must carry oxygen tanks to breathe underwater.)

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