| 释义 |
氧yǎng气体元素,符号O(oxygenium)。无色无臭无味,能助燃,化学性质很活泼。氧在空气中约占1/5,是人和动植物呼吸所必需的气体,在工业上用途很广。{oxygen (O); active combustion-supporting gaseous chemical element that is colourless, tasteless and odourless, and makes up one fifth of the atmosphere; essential gas for the respiration of human beings, animals and plants, and widely used in industry;}通称{commonly called}氧气{yǎngqì}。 |