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- Rhizobia are able to induce the organogenesis of root nodules on legumeinous plants and reduce atmospheric nitrogen into ammonia. 根瘤菌与豆科植物共生固氮而在农业和生态环境中具有重要作用。
- Besides the rainfall, dry deposition and occult precipitation are also important forms in atmospheric nitrogen deposition. 由于人类活动的影响,若干年代以来大气氮沉降明显增加。
- Haber-Bosch process(Haber ammonia process,synthetic ammonia process):First economically feasible method of directly synthesizing ammonia from hydrogen gas and atmospheric nitrogen. 哈伯-博施法(亦称哈伯制氨法或合成氨法):用氢和空气中氮直接合成氨的方法。
- It is shown from the recent studies that organic nitrogen compounds are an important component of atmospheric nitrogen deposition and make a nonnegligible contribution to the global nitrogen cycling. 摘要近几年的研究表明,有机氮化合物是大气氮沉降的重要组成部分,对全球氮循环的贡献不可忽视。
- The result illustrated makes it practicable to oxidize the atmospheric nitrogen in unlimited quantities, merely by the use of cheap mechanical power and simple electrical apparatus. 这样的话,结果,我们就能够氧化大气中无穷尽数量的氮,仅仅只需便宜的机器和简单的电气设备。
- transformation of atmospheric nitrogen 大气氮的转变
- fixation of atmospheric nitrogen 大气氮素固定,大气氮固定
- Countermeasure of Atmospheric Nitrogen Oxide Pollution in China 我国大气氮氧化物污染控制对策
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- Development of a Network for Atmospheric Nitrogen Dioxide Monitoring in Russia 俄罗斯大气二氧化氮监测网的发展
- What's the atmospheric pressure today? 今天的气压怎么样?
- The glass (ie atmospheric pressure) is falling. 气压在下降。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- Lush atmospheric touches in every room. 每个房间都充满朦胧的艺术美
- 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。
- An obscuring haze, as of atmospheric dust or smoke. 烟雾,尘雾如空气中的尘土或烟雾等模糊的雾气
- An atmospheric movement; a breeze or wind. 微风大气的流动; 一阵微风或风
- She frequents the atmospheric cafe. 她常去那家俱乐艺术氛围的咖啡馆。
- the assimilation of atmospheric nitrogen by soil bacteria and its release for plant use on the death of the bacteria. 土壤细菌吸收大气中的氮,这些氮在细菌死后被植物吸收、利用。