1) reduction and control of N and P
氮磷减控
2) ammonia nitrogen and total phosphorus
氨氮和总磷减排
1.
We focused on this wastewater treatment plant s environmental benefit due to the reduction of COD,ammonia nitrogen and total phosphorus,and analyze their reduce situation,and compared their environmental benefit combining the.
本文着重研究了该厂由于COD、氨氮和总磷减排所产生的环境效益,分析了COD、氨氮和总磷的削减情况,结合总投资计算了它们的效益-投入比并比较它们环境效益的大小。
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：可控性与非可控性投入
可控性与非可控性投入
可控性与非可控性投人可控性投入指学校和教育行政部门可以控制的教育资源投入。学校可以对教学负担、班级规模、课程教学单元的数量、每个教师承担的学科教学任务的平均量等可控性投入进行调节和平衡，以改进教学质量。教育行政部门可以对教师的专业准备程度、教学经验、培训要求、教师工资、设备供应、生活费用、图书馆藏书等投入进行选择，以调节教育的供给与需求。而非可控性投入指学校和教育行政部门不能控制的教育资源投入。如学生的种族、性别、年龄及家长的社会经济背景等无法控制的因素对教育有着不同程度的影响。教育部门不能控制学生家长的教育水平和收入状况，但应当推动教育机会平等的社会经济环境的实现。
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