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- The researchers were able to tell wet from dry years by analyzing the amounts of different forms of oxygen in the lake sediment. 研究人员从分析湖泊沉积物不同形式的含氧量,就足以分辨是干旱年还是雨水较多的湿润年。
- The concentrations of Pb, Cu, Cr, Cd, Fe and Mn in the overlying water and the pore waters of Dianshan Lake sediment were determined using PERKIN-ELMER 5100PC AAS. 用原子吸收光谱仪测定了淀山湖上覆水体和沉积物孔隙水中Pb、Cu、Cr、Cd、Fe和Mn的浓度.
- Nitrogen release characteristic of Dianchi lake sediment and the nitrogen nutrients concentration of overlying water body was studied through simulating cultivation. 通过模拟培养,研究了底泥氮营养的释放及上覆水体中氮营养的浓度变化特征。
- The enriching point of available P depended on soil types, being P2O5 60 ~ 120 mg/kg in the paddy soil derived from Tertiary red sandstone, and P2O5 120 ~ 180 mg/kg in the paddy soils from Quaternary red clay and loess-like lake sediment. 土壤速效P出现富集的转折点因供试土壤而异,第三纪红壤性水稻土大致为P2O560~120mg/kg,而第四纪红壤性水稻土和黄泥土为P2O5120~180mg/kg。
- When excavating deep foundation ditch in the lake sediment that filled with deep and thick silt, it is a common technical problem that the upheave which caused by relief loads leading to slope destabilization. 摘要在湖泊相沉积的深厚淤泥土场地开挖深基坑,由于坑底卸荷隆起导致基坑边坡位移、失稳是常见的技术难题。
- There is great thickness of lake sediments of Eogene in Biyang rifted-basin. 泌阳断陷沉积了巨厚的老第三系稳定的湖相水下沉积,深凹区是主要的生油区,地层极平缓。
- Environmental Dredging Technology of Lake Sediment 湖泊底泥环境疏浚工程技术
- Pediastrum in Lake Sediment and Its Mineralization 盘星藻在湖泊沉积中的成矿作用
- NAA OF IAEA LAKE SEDIMENT RM, SL-3 FOR 45 ELEMENTS IAEA参考物SL-3中45种元素的中子活化分析
- climatic records of the lake sediment 湖泊沉积气候记录
- Urban river and lake sediment treatment 河湖底泥处理
- Keywords lake sediment;diatom;purification; 湖泊沉积物;硅藻;提纯;
- C/N ratio is extensively used to reflect the sources of the organic matter in the lake sediments. 摘要C/N比值在湖泊沉积物研究中广泛用于反映有机质的来源;
- Even at Meridiani, basaltic sands lie atop the lake sediments, indicating that the site has been parched for two billion to three billion years. 甚至在子午线地盘,玄武岩质的沙披覆在湖床沉积物上,显示此地已经乾涸了20~30亿年。
- Lass on ignition (LOI) is a simple, inexpensive method widely used to measure contents of organic and inorganic carbon in lake sediments. 摘要烧失量分析是一种便捷的测定湖泊沉积物有机碳与碳酸盐含量的方法。
- Loss on ignition(LOI) is a simple,inexpensive method widely used to measure contents of organic and inorganic carbon in lake sediments. 烧失量分析是一种便捷的测定湖泊沉积物有机碳与碳酸盐含量的方法。
- As an important component of lake sediments, diatom is of great value for reconstructing paleoclimate and paleoenvironment. 摘要硅藻是湖泊沉积物的重要组成部分,沉积物硅藻硅氧同位素在重建古气候、古环境方面具有重要价值。
- As an important component of lake sediments,diatom is of great value for reconstructing paleoclimate and paleoenvironment. 硅藻是湖泊沉积物的重要组成部分,沉积物硅藻硅氧同位素在重建古气候、古环境方面具有重要价值。
- Eicher U.Siegenthaler U Late-glacial climatic oscillations as recorded in Swiss lake sediments ;von Grafenstein U.Erlenkeuser H. 新疆艾比湖地区湖泊沉积记录的早全新世气候环境特征 作者:吴敬禄 - - 被引用次数: - 相关文章 - 所有 个版本 Lotter A F.
- He emptied out the water barrel to clear it of sediment. 他把水桶倒空以清掉桶底的沉淀物。