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- The choice of thermal conductivity detector and thermal elements applied in oxygen and nitrogen analyzer 氧氮分析仪的热导检测器及热敏元件选择
- oxygen & nitrogen analyzer 氧氮分析仪
- Water contains hydrogen and oxygen. 水含有氢和氧。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Unlike oxygen, the element nitrogen is inactive. 与氧不同，元素氮不活泼。
- Oxygen enters into many compound bodies. 氧是许多化合物的组成部分。
- 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。
- Mars is too dry and poor in oxygen. 火星上面过于干燥，并且缺乏氧气。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Fish take in oxygen through their gills. 鱼通过鳃摄取氧气。
- If it were not for oxygen and nitrogen in the air, no man could live on the earth. 大气中如果没有氧和氮，人就无法生存于地球了。
- The oxygen react vigorously with the impurity in the iron. 氧气与铁中的杂质发生剧烈的化学反应。
- One atom of oxygen is linked to the nitrogen atom by a double bond. 一个氧原子以双键与氮原子相连。
- The prices of B& W TV sets have gone down. 黑白电视机跌价了。
- The oxygen workshop caught fire and set off a chain of explosions. 氧气车间着了火，引起了一连串的爆炸。
- From US News & World Report. 译自《美国新闻与世界报道》
- Complimentary beauty Products & Treatment. 附赠美容及护肤产品
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳释放氧气。
