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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- monoxide nitrogen [医] 一氧化氮, 笑气
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Carbon dioxide, carbon monoxide, hydrogen cyanide, nitrogen containing gases. : 二氧化碳; 一氧化碳; 氰化氢和含氮气体.
- As motor vehicles burn fuel, they give off carbon monoxide as a waste. 在汽车燃烧燃料时,产生废气一氧化碳。
- The heavy traffic tinctures the air with carbon monoxide. 繁忙的交通使空气里充满一氧化碳。
- CO is the formula for carbon monoxide. CO 是一氧化碳的分子式。
- The mineral form of lead monoxide,PbO. 天然一氧化铅一氧化铅(PbO)的矿物形式
- The mineral form of lead monoxide, PbO. 天然一氧化铅一氧化铅(pbo)的矿物形式
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- White and blank, expansive as carbon monoxide. 白的和黑的,如一氧化碳般珍贵。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- Fast neutrons are also captured by nitrogen. 快中子也可以被氮吸收。
- These winds can trap chlorine monoxide and speed ozone destruction. 这些风能捕获一氧化氯并加速对臭氧的破坏。
- Nitrogen forms four-fifths of the atmosphere. 氮气占空气的五分之四。
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