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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- nitrogenous glycoside 含氮糖甙
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- 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。
- A new chromone glycoside from Cassia siamea lam. 铁刀木中一个新的色酮苷。
- Chaling County Nitrogenous Fertilizers P. 茶陵县氮肥厂。
- Anhua County Nitrogenous Fertilizer Fact. 安化县氮肥厂。
- Anren County Nitrogenous Fertilizers Pla. 安仁县氮肥厂。
- Anxiang County Nitrogenous Fertilizers F. 安乡县氮肥厂。
- A glycoside, the sugar component of which is glucose. 葡糖苷一种苷，葡萄糖的一糖成份
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- A glycoside,the sugar component of which is glucose. 葡糖苷一种苷，葡萄糖的一糖成份
- 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。
- Nitrogen forms four-fifths of the atmosphere. 氮气占空气的五分之四。
- Nitrogen forms about four-fifths of the atmosphere. 氮约佔大气的五分之四。
