1) curve of nitrogen and phosphorus
氮磷曲线
1.
The curve of nitrogen and phosphorus in the first phase shows that when nitr.
主体阶段1时各反应池的氮磷曲线显示,当进水端缺氧池的硝态氮降至0。
2) the critical nitrogen potential profile
临界氮势曲线
1.
The nitrogen potential is the fundamental controlling parameter of controlled gas nitriding,so the critical nitrogen potential profile of compound phases production in differential temperatures must be obtaineded and be used to be the major thereunder of the nitriding technics.
应用氮势进行可控渗氮时,须用不同温度下出现化合物相的临界氮势曲线,作为可控渗氮工艺的主要依据。
3) nitrogen and phosphorus
氮磷
1.
Characteristics on nitrogen and phosphorus losses in the typical small watershed of the Three Georges Reservoir area;
三峡库区典型小流域氮磷流失特征
2.
Effect of aeration on release of nitrogen and phosphorus from sediments in eutrophic waterbody;
曝气复氧对富营养化水体底泥氮磷释放的影响
3.
Advance in biogeochemistry studies on nitrogen and phosphorus in offshore sediment;
近海沉积物中氮磷的生物地球化学研究进展
4) nitrogen and phosphorus
氮、磷
1.
A water quality model of non-conservative substances, including nitrogen,phosphorus,phytoplankton and zooplankton is established,which takes into consideration the physical and biochemical processes related to nitrogen and phosphorus.
考虑了近岸海域影响氮、磷含量、时空分布的主要物理、生物化学过程,建立了胶州湾海域非保守物质(氮、磷)的水质预测模型。
2.
The pollution situation of nitrogen and phosphorus in rural water environment in typical region of Tai Lake was studied by determining the contents of total-phosphorus,nitrate nitrogen and ammonium nitrogen 6 times during a year in rural water body of Tai-lake typical region(Yixing,Wangzhuang and Xinzhuang).
结果表明,一年中的丰水期(5至9月),农田各个水体中氮、磷含量明显高于其他时期;地表水中NH+4-N含量较高,地下水中NO3--N含量也偏高。
3.
The removal efficiencies of nitrogen and phosphorus by four experimental small-scale integrated systems of constructed (wetland) and oxidation pond, consisting of horizontal-flow wetland, vertical wetland or oxidization pond, were compared.
本文在小试规模上,研究了下行流湿地、推流床湿地、氧化塘和兼性塘四种处理单元的四种工艺组合对氮、磷的去除效果,研究结果表明:下行流湿地+氧化塘工艺组合具有较好的充氧效果,推流床湿地后置也可以提高出水的溶解氧。
5) N and P
氮磷
1.
Effect of Pig Manure and Chemical Fertilizer Application on Dynamics of N and P in Floodwater of Paddy Soils;
施用猪粪和化肥对稻田土壤表面水氮磷动态的影响
2.
The Effects of Fertilizer N and P on Nitrate Accumulation in Dian Lake Drainage Area under Protection;
滇池流域设施条件下氮磷对土壤硝酸盐累积的影响
补充资料：Hesse曲线(代数曲线的)
Hesse曲线(代数曲线的)
Hessian (algebraic curve)
11油限曲线(代数曲线的)【H台自11(.妙如允.抖e);recc咖，T~aaa，即r药pa一吸ee二o‘二p.助蓝] n次代数曲线(司罗玩水c~)的He丈祀曲线就是其极二次曲线能分裂为两条直线的点的集合，也是第一极曲线的二重点构成的集合.n次非奇异曲线的He丈七曲线是一条次数为3伪一2)、类为3(n一2)(3n一7)的曲线.设介O是这条n次曲线的齐次坐标方程，关丘=刁:f/刁xi刁、，则它的He丈犯曲线的定义方程为 !不:关:五，} }五:关:五31=0. }人，人2人3}特征不等于3时的三次非奇异曲线的H既七曲线与这条曲线交于9个通常拐点.因O.H改e(l 844)而得名. A .E.H困阳。B撰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条