英文釋義
a nonmetallic chemical element with atomic number 7 that under standard conditions is a colorless, odorless, inert gas, that constitutes 78 percent of the Earth's atmosphere, and that is used especially in the industrial synthesis of ammonia, as a component of inert atmospheres, and in liquid form as a refrigerant —often used before another noun
例句 Example
Nitrogen is the most important for high yield of rice.
氮對水稻高産最為重要.