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- Ionized nitrogen molecules issued purple and blue light. 电离的氮分子则发出紫蓝色的光。
- After a little argon was mixed, the breakdown voltage of discharge obviously decreased.The spectral line intensities of nitrogen molecules and nitrogen atoms increased. 在大气中加入少量氩气后，击穿电压明显降低，在相同电压条件下，氮分子光谱线和氮原子光谱线强度都增强。
- Now, however, researchers at Canada's National Research Council in Ottawa have produced a three-dimensional scan of the outermost electron orbital around a nitrogen molecule. 不过，位于渥太华的加拿大国家研究委员会，其研究人员最近却针对氮分子最外层的电子，拍摄出其绕行轨道的三维立体影像。
- Some biological molecules have the form of a helix. 有些生物分子呈螺旋状。
- 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。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- A chemical compound consisting of such molecules. 二聚化合物这种聚合物形成化合物
- Containing molecules consisting of two fused rings. 二环的包含由两个结合的环组成的分子的
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Substances consist of small particles called molecules. 物质是由叫做分子的微粒组成的。
- The molecules of a gas are moving about extremely fast in all directions. 气体的分子非常迅速地向四面八方运动着。
- Biochemistry) A nitrogenous molecule, either a PYRIMIDINE or a PURINE, that combines with a pentose sugar and phosphoric acid to form a nucleotide, the fundamental unit of nucleic acids. 2碱基：一种含氮的分子，嘌呤碱或者是嘧啶碱，它们和戊糖还有磷酸一起构成核苷酸，核苷酸是核酸的基本结构单位。
- nitrogen molecules 氮分子
- Molecules repel each other when they collide. 当分子相碰撞时彼此互斥。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- How fast the molecules move is still a question . 分子运动有多快仍是个问题。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- A computer chip made from organic molecules rather than silicon or germanium. 生物芯片用有机分子而非硅或锗制造的计算机芯片
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
