1)sediment core沉积物柱样
1.The concentrations of organochlorine pesticides in the sediment core of Quanzhou Bay were determined by GC-ECD with the internal standard method.用GC-ECD内标法测定了泉州湾沉积物柱样中有机氯农药的含量。
2)core sediments柱样沉积物
1.Distribution characteristics of heavy metals in surface sediments and core sediments of the Shenzhen Bay in Guangdong Province,China;深圳湾海域表层和柱样沉积物中的重金属分布特征
2.Sporo-pollen assemblage characteristics of core sediments in Xiamen Harbour;厦门港湾柱样沉积物的孢粉组合特征
英文短句/例句
1.VARIATION OF ELEMENTS IN SEDIMENTS FROM THE HYPOXIA ZONE OF THE YANGTZE ESTUARY AND ITS RESPONSE TO SEDIMENTARY ENVIRONMENT OVER THE LAST 100 YEARS长江口外缺氧区柱样沉积物元素的分布及其百年沉积环境效应
2.Pollution of Heavy Metal in the Sample of Column of Bohai Bay in Tianjin渤海湾(天津段)柱样沉积物重金属污染研究
3.The anisotropy of magnetic susceptibility of Core NS97-13 sediments from the Nansha Islands sea area in the southern South China Sea南沙群岛海区NS97-13柱样沉积物磁化率各向异性研究
4.PLANKTONIC FORAMINIFERA IN CORE 89PC FROM THE NORTHWESTERN SOUTH CHINA SEA AND THEIR PALEOENVIRONMENT SIGNIFICANCE南海西北部89PC柱样沉积物中浮游有孔虫特征及其古环境意义
5.REE Characteristics of Core Q43 Sediments from Outer-shelf of East China Sea and the Provenance Indicating;东海外陆架Q43柱样沉积物稀土元素地球化学特征及其物源示踪意义
6.High Resolution Sedimentary Record of Organochlorine Pesticides in Sediment Cores from Tian'ezhou Oxbow天鹅洲长江故道沉积物柱状样中有机氯农药高分辨率沉积记录
7.Comparative Study on the Archaeal Diversity of Two Deep-sea Sediment Columns Collected from Northern South China Sea南海北部两根沉积物柱古菌多样性比较研究
8.On the Technique and Methods in Columned Sample Processing of the Seabed Sediment底质沉积物柱状样品处理技术方法研究
9.Geochemical sedimentary records of core sample MP2001-01 in the Central Pacific and its environmental significance中太平洋MP2001-01柱状样品沉积地层记录与物性、源性及其环境意义
10.Analysis of PCB47 and PCB155 in plant and sediment植物和沉积物样品中PCB47与PCB155的测定
11.Vertical Distribution Characteristic of Nitrogen in the Core Sediments of Three Rivers Estuary in Poyang Lake鄱阳湖三江口柱状沉积物氮的垂直分布特征
12.A STUDY ON INORGANIC AND ORGANIC PHOSPHORUS IN CORE SEDIMENT OF JIAOZHOU BAY胶州湾柱状沉积物中无机与有机磷的形态研究
13.The deposit produced by such a landslide.由这样的滑坡产生的沉积物
14.Amyloid deposits were positive for Congo Red(15/15).淀粉样沉积物刚果红染色阳性(15/15)。
15.Genetic Diversity of Bacterial from Prawn Farm Sediment对虾养殖池沉积物细菌的遗传多样性
16.Such collections of amyloid add to renal bulk, but diminish renal function.淀粉样物质沉积使肾脏体积增大，但功能下降。
17.The echinoderm biomass in the fine sediments area in higher, the species diversity in the coarse sediments area is higher.细颗粒沉积区中生物量较高,而粗颗粒沉积区种类多样性较高。
18.COMPARISON OF CORE SEDIMENT GRAIN-SIZE CHARACTERISTICS BETWEEN YANGTZE RIVER ESTUARY AND ZHOUSHAN ISLANDS AND ITS SIGNIFICANCE TO SEDIMENT SOURCE ANALYSIS长江口与舟山海域柱状沉积物粒度特征对比及其物源指示意义
相关短句/例句
core sediments柱样沉积物
1.Distribution characteristics of heavy metals in surface sediments and core sediments of the Shenzhen Bay in Guangdong Province,China;深圳湾海域表层和柱样沉积物中的重金属分布特征
2.Sporo-pollen assemblage characteristics of core sediments in Xiamen Harbour;厦门港湾柱样沉积物的孢粉组合特征
3)core sediment柱样沉积物
1.Nitrogen profiles in core sediment and interstitial water of tidal flats in Changjiang(Yangtze)River Estuary;长江口滨岸潮滩柱样沉积物与孔隙水中氮的垂直分布特征
4)sediment core沉积物柱状样
1.The measurement and principle of ultrasonic measurement of sediment core are introduced.介绍了沉积物柱状样超声透射法测量方法和原理。
5)sediment core柱状沉积物
1.Determination of thallium chemical form in sediment core from Pearl River;珠江柱状沉积物中铊化学形态的研究
2.Ultrasonic measurement of seafloor sediment cores;海底柱状沉积物超声测量
3.The organochlorinne pesticides(OCPs) and the polychlorinated biphenyls(PCBs) in sediment core collected from Lake Nansihu were quantificationally analyzed by GC-ECD.柱状沉积物的沉积速率为0。
6)core sediment柱状沉积物
1.Distribution and source characteristics of carbon and nitrogen and their burial fluxes in two core sediments from western Nansha Islands sea area;南沙群岛西部海域两柱状沉积物中碳和氮的分布和来源特征及埋藏通量估算
2.Seawater,suspended particulate matter(SPM),surface sediment and core sediment samples from Deep Bay in 2004 were collected and 15 PAH isomers concentrations and relative parameters were analyzed,while the age of core sediment was also detected by use of the()~(210)Pb dating method.2004年在深圳湾海域采集海水、悬浮物、表层沉积物和柱状沉积物样品,并分析其中15种多环芳烃的含量及其相关参数,同时采用210Pb法测定柱状沉积物的年龄。
延伸阅读
沉积物控制 沉积物控制是循环冷却水处理(见循环冷却水系统)的一个主要内容。沉积物是指沉积在给水系统中的管壁或设备壁上的固体的统称。 沉积物类型 循环冷却水的沉积物成分较复杂，可分为盐垢（水垢）、污垢和粘垢三类。盐垢指水中盐类，特别是某些微溶盐类，因水温升高而溶解度降低，从水中析出而形成的沉积物。常见的有碳酸钙、硫酸钙、磷酸钙和硅酸镁。污垢指水中腐蚀产物、工艺漏料(如油)、泥沙、粉尘、碎屑、菌藻等不溶杂质所形成的沉积物。粘垢指由微生物及其代谢产物和一些其他杂质夹杂在一起而形成的凝胶状、粘泥状物质。沉积物除堵塞管道和换热设备外，还有降低传热效率、增加能耗和造成垢下腐蚀等害处。 沉积物控制因素 指将沉积物控制在一定限度内，以保证循环冷却水系统的正常运行。控制微生物即可控制粘垢。控制补充水和循环水的悬浮杂质，并在循环水中投加分散剂或高分子凝聚剂，即可控制污垢。盐垢的控制方法有：①加酸。常用的是硫酸或二氧化碳。硫酸的作用是降低水中的重碳酸根的浓度，从而防止产生碳酸钙沉淀。加二氧化碳是使水中碳酸根转化为重碳酸根，以防止碳酸钙沉淀。②加阻垢剂。常用的有聚磷酸盐、磷酸酯、膦酸盐、聚羧酸盐等。③软化和除盐。降低水中溶解盐类，以避免出现盐垢。软化和除盐只在特殊情况下才采用。 水质稳定处理 循环给水或直流给水系统中最常出现的盐垢是碳酸钙沉淀。碳酸钙 (CaCO3)沉淀和水中二氧化碳(CO2)之间的关系可表示为： 当水中CO2浓度不足以保持这一平衡关系时，产生CaCO3沉淀;当CO2浓度超过这一平衡关系时,水中无CaCO3沉淀，CO2产生侵蚀作用。二氧化碳的过量与不足都造成水质的"不稳定"情况。当水中CaCO3和CO2的浓度正好满足化学平衡的关系时,称为水质稳定。这时既无CaCO3沉淀,也无CO2的侵蚀作用。鉴别稳定性的最通用指标是兰格利尔饱和指数,简称兰格利尔指数。饱和指数＝pH-pHS,式中pH值为水的实测值；pHS值则是当水质稳定时,水应有的pH值,与水温有关。饱和指数等于零时,水质稳定；大于零时,水将产生CaCO3沉淀；小于零时,将有CO2侵蚀作用。在测得水的温度、pH值、钙和碱度后,可以计算pHS值。
