nitrogen cycle

Effect of Seaweed Extract on Nitrogen Cycle in Eutrophic Water

海藻提取物对富营养化水体氮素循环影响研究

Thermal cycle design of liquid nitrogen engine

液氮发动机的热力循环设计

If this nitrogen cycle repeated elsewhere, many of the world's forest won't be absorbing much CO 2.

如果这种氮循环不断重复进行, 那么世界上很多森林都不能再吸收二氧化碳.

Accumulation and biological cycle of nitrogen and phosphorus in Pinus taiwanensis community in Wuyi Mountains

福建武夷山黄山松群落的氮、磷累积和循环

Purification of Lake Water by Simulative Dynamic Experiment Using Immobilized Nitrogen Cycle Bacteria in Winter

秋冬季环境下固定化氮循环细菌净化湖泊水体氮污染动态模拟

The autotrophic nitrifying bacteria play a critical role in nitrogen cycle in nature.

硝化细菌是一大类在自然界氮循环中起关键作用的微生物菌群。

Adsorption of sediments on NH~+_4-N is one of the key biogeochemical processes, which plays an important role in the cycle of nitrogen in an estuary and tidal flats.

沉积物对NH4+-N的吸附是氮素生物地球化学循环的关键过程之一，它在河口潮滩生态系统内氮素循环过程中起着非常重要的作用。

Nitrogen is an important nutrition for halobios, ocean organic nitrogen is very important in the global nitrogen cycle.

氮是海洋生物生长的重要营养元素，海洋中的溶解有机氮是海洋氮循环的重要组成部分，也对全球氮循环有重要影响。

Estuary wetland, as the natural barrier of accommodating purification land-sourced pollutants and cutting them into the sea, plays a very important role in controlling estuarine and coastal water nutritional status and global carbon 、 nitrogen cycle.

河口湿地作为容纳净化陆源污染物、削减其入海通量的天然屏障，在控制河口和近海水体营养状况以及全球碳、氮循环过程中扮演着十分重要的角色。

Effects of Compound Microbes Preparation on Variety of Nitrogen-Cycle Bacteria in Pond Water

复合微生态制剂对池塘水体氮循环细菌动态变化的影响

Natural gas liquification involves both mixed-refrigerant cycle and nitrogen expander cycle.

近几年国内天然气液化技术主要采用混合工质液化循环和氮膨胀液化循环.

Studies on the correlation among various bacteria and physicochemical factors in the nitrogen cycle in Fishpond

池塘氮循环中各种细菌与理化因子的相关性研究

Cyanobacteria extensively distributed in inland and ocean water are very important for carbon and nitrogen cycle.

蓝藻在水体中分布广泛,对水体中碳、氮循环起到重要作用.

It was found that the immobilized nitrogen cycle bacteria also have purificatory effect on eutrophic water of Taihu lake in winter ( 7 ℃), the removal efficiencies for Total N ( TN), NH+ 4 N were 55.6%, and 58.9%, respectively.

固定化氮循环细菌在冬季低温（7℃）条件下仍保持了较高的除氮能力，总氮和氨氮去除率分别为55.6%，58.9%。