对AHRI Standard 1230-2014 Performance Rating of Variable Refrigerant Flow(VRF)Multi-split Air-conditioning and Heat Pump Equipment中水源热泵型可变制冷剂流量多联式空调(热泵)机组的分类、测试项目、测试要点等进行解析。阐...对AHRI Standard 1230-2014 Performance Rating of Variable Refrigerant Flow(VRF)Multi-split Air-conditioning and Heat Pump Equipment中水源热泵型可变制冷剂流量多联式空调(热泵)机组的分类、测试项目、测试要点等进行解析。阐述多模块机组水泵修正功率方法以及多模块机组并联的水流量测试方法,旨在为标准的正确理解以及水源热泵型可变制冷剂流量多联式空调(热泵)机组产品的AHRI认证测试提供指导。展开更多
[Objective] The aim was to research impacts of agricultural non-point pol- lution on water-source region in Songhua Dam, laying foundation for control of water pollution and scientific protection of water-source regio...[Objective] The aim was to research impacts of agricultural non-point pol- lution on water-source region in Songhua Dam, laying foundation for control of water pollution and scientific protection of water-source region. [Method] Water in Muyang River, lengshui River and Zizania aquatica region were sampled to measure content of pollutants in water and conclude relation between water contamination and agri- cultural non-point pollution to find the major cause of pollution. [Result] Organic pollu- tant in Muyang River was higher; N and P contents in Lengshui River were higher; the measured indices in Zizania aquatica region excessively exceeded related stan- dard. [Conclusion] The chemical fertilizers and pesticides are the toxic materials lead- ing to water contamination and constitute a major cause of pollution in Songhua Dam water-source region. Agricultural non-point pollution should be controlled in a scientific way.展开更多
文摘对AHRI Standard 1230-2014 Performance Rating of Variable Refrigerant Flow(VRF)Multi-split Air-conditioning and Heat Pump Equipment中水源热泵型可变制冷剂流量多联式空调(热泵)机组的分类、测试项目、测试要点等进行解析。阐述多模块机组水泵修正功率方法以及多模块机组并联的水流量测试方法,旨在为标准的正确理解以及水源热泵型可变制冷剂流量多联式空调(热泵)机组产品的AHRI认证测试提供指导。
文摘[Objective] The aim was to research impacts of agricultural non-point pol- lution on water-source region in Songhua Dam, laying foundation for control of water pollution and scientific protection of water-source region. [Method] Water in Muyang River, lengshui River and Zizania aquatica region were sampled to measure content of pollutants in water and conclude relation between water contamination and agri- cultural non-point pollution to find the major cause of pollution. [Result] Organic pollu- tant in Muyang River was higher; N and P contents in Lengshui River were higher; the measured indices in Zizania aquatica region excessively exceeded related stan- dard. [Conclusion] The chemical fertilizers and pesticides are the toxic materials lead- ing to water contamination and constitute a major cause of pollution in Songhua Dam water-source region. Agricultural non-point pollution should be controlled in a scientific way.
