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- Analysis and control Infection factor of nitrogen contamination in water-soil system 土-水系统中氮污染的影响因素分析与调控
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Study on Nitrogen Contamination of Groundwater in Municipal Dumping Site and its Main Form 城市垃圾堆放场地下水的氮污染及其存在形态
- Means for Controlling of Agricultural Non-point-source Nitrogen Contamination in the Under-middle Changjiang Area 长江中下游地区农业非点源氮污染控制对策
- Study on Tendency and Law of Ammonia Nitrogen Contamination Variation at Huayuankou Section on the Lower Yellow River 黄河花园口河段氨氮污染变化趋势及规律研究
- 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。
- nitrogen contamination 太湖
- Contamination can't be ruled out entirely. 污染是不能完全清除的。
- The brass surface must be free of contamination. 黄铜表面必须未经沾污。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- Such contamination has been extensively studied. 人们对这种污染进行了大量研究。
- Moral contamination or corruption. 腐蚀精神上被腐化或堕落
- The contamination should be removed. 应该清除掉污染。
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- An abnormal fear of dirt or contamination. 不洁恐怖对污物或污染的异常恐惧
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- No product contamination absolute tightness. 没有产品污染的绝对气密性。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
