氮气的用法和样例:
例句
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空气一种无色、无嗅、无味的气体混合物,主要由氮气(约占78%)和氧气(约占21%)组成,还有少量的氩、二氧化碳、氢、氖、氦及其它气体
A colorless, odorless, tasteless, gaseous mixture, mainly nitrogen(approximately78 percent) and oxygen(approximately21 percent) with lesser amounts of argon, carbon dioxide, hydrogen, neon, helium, and other gases. -
空气主要由氮气组成。
Air consists chiefly of nitrogen. -
地球上空气的大部分成分是氮气。
Nitrogen forms most of the Earth's air.