关键词饶河流域;水沙特征;突变分析;趋势分析characteristics and influence factors of runoff and sediment changes in raohe river...sediment data of three stations in raohe river basin from 1952 to 2014, we studied the variation acteristics
pollution cases in southwest china. through the analysis of the hydrogeological conditions, acteristics...pollution and leakage infiltration pollution. this study can help researchers to better identify the acteristics
more than 40% in the advanced treatment section. the project completed with some outstanding acteristics...中国给水排水, 2016, 32(8): 44-46.miao wen-ping, liu qing-yan. design acteristics of wastewater treatment plant
全球能源转型地缘政治委员会(globalcommission on the geopolitics of energy transformation)与国际可再生能源署(irena)日前发布《一个新世界...:能源转型的地理政治》(a new world:the geopolitics of the energy transformation),其中转引了一张表列出绿色能源技术所需要的各类金属材料——(来源
在政策和技术因素共同驱动下,交通运输和电力行业均面临重大变化,s&p global platts analytics预计锂电池在这一转型中将起到重要作用。...s&p global platts analytics模型显示,在一段时间内,燃油和保养方面的节约将不足以使电动汽车在总拥有成本上具备竞争优势。