Rivers are classified into two types.One is the outer river which flows into ocean and the other is the inner river which does not flow into the ocean but into desert or lake.The inner rivers are the erosive rivers th...Rivers are classified into two types.One is the outer river which flows into ocean and the other is the inner river which does not flow into the ocean but into desert or lake.The inner rivers are the erosive rivers that have been seldom studied so far.Based on the field survey data,the analysis on the characteristics of the flow and sediment in the inner rivers' broad-shallow shifting (IRBS) reach.The IRBS reach often bears such the properties as:high gradient bed,usually 10‰or greater;small flow dischar...展开更多
将氧化钼样品经处理转化为钼酸铅沉淀后,以微波炉代替马弗炉对沉淀进行了干燥试验,同时对氧化钼的水分测定也采用了微波干燥法。结果表明,利用微波法可使沉淀干燥的时间由30 m in缩短为7 m in,氧化钼干燥时间由2 h缩短为4 m in。显著提...将氧化钼样品经处理转化为钼酸铅沉淀后,以微波炉代替马弗炉对沉淀进行了干燥试验,同时对氧化钼的水分测定也采用了微波干燥法。结果表明,利用微波法可使沉淀干燥的时间由30 m in缩短为7 m in,氧化钼干燥时间由2 h缩短为4 m in。显著提高了样品中钼和水分的测定速度。展开更多
文摘Rivers are classified into two types.One is the outer river which flows into ocean and the other is the inner river which does not flow into the ocean but into desert or lake.The inner rivers are the erosive rivers that have been seldom studied so far.Based on the field survey data,the analysis on the characteristics of the flow and sediment in the inner rivers' broad-shallow shifting (IRBS) reach.The IRBS reach often bears such the properties as:high gradient bed,usually 10‰or greater;small flow dischar...
