查询词典 sediment-covered

Pure water is clear, achromaticity, natural water often showing a certain color, which mainly comes from plant leaves, bark, roots, humus and soluble inorganic minerals and sediment, su*ce water polluted by industrial waste water will make the water color extremely complex.

纯净的水是无色透明的，自然水时常呈现出一定的色彩，它主要来源于植物的叶、皮、根、腐殖质和可溶性无机矿事物和泥砂等，地面水受工业废水污染后可使水色变患上极为复杂。

Acid precipitation or sediment is the indirect product of human activities that exert multiphase influences on human environment.

探索地质作用对长期运行或永久性工程的负效应尤为迫切，需要开展及时的研究。

The acidophile s composition and community structure in the sediment was studied with 16S rDNA clone library and denaturing gradient gel electrophoresis.

采集了酸性矿山废水区域酸性沉积物样品，运用16S rDNA克隆文库技术和变性梯度凝胶电泳技术，研究了沉积物中的嗜酸菌类群以及它们的群落结构。

As the years pass and layer on layer of rock fragments pile up, they are squeezed or compacted by the weight of the materials on top of them. Then sediment s may be cemented together, forming the sediment ary rocks.

随着时间的流逝，岩石和矿物碎屑一层层地堆积起来，上覆岩屑物质的重量对下伏岩屑产生压实作用，然后沉积物被胶结在一起，最终形成沉积岩。

It introduces the location, profile structure and environmental characteristic of lacustrine sediment and eolian sediment in detail. Stratum chronology is established during the last 5000 years based on radiocarbon, 210Pb and 137Cs dating method.

详细介绍了本研究野外考察获取的湖泊沉积剖面和风沙沉积剖面的地理位置、剖面结构及区域气候环境特征；在14C、210Pb和137Cs测年的基础上建立了近5000年沙地演化的地层年代序列。

An equation is derived by theoretical analysis, to establish a relationship between suspended sediment concentrations and ADCP echo intensity output. For the survey at the entrance to Jiaozhou Bay, an ADCP is mounted on a moving vessel; the calibration coefficient in the equation is determined by in situ measurement. Then, a semi-empirical formula is obtained and used to calculate suspended sediment concentration profiles along several crosssections.

理论分析获得了海水中悬沙浓度与ADCP输出的回声强度之间的函数关系式；在胶州湾口门进行走航式测量，同步采水样进行现场校正来率定相应的ADCP声学信号，获得了计算悬沙浓度的半经验公式；进而得到走航断面准同步的悬沙浓度剖面。

After reviewing the related research work carried out by earlier researchers, a 1-D unsteady flow and sediment model is used as a tool to study the influence of time distortion upon physical models. It is aimed to get a fullscale and quantitative insight into this problem, especially the dynamic processes of flow and sediment transport.

本文回顾了前人对物理模型时间变态问题的研究，在此基础上，以一维不恒定流泥沙数学模型为工具，对实体模型试验中时间变态带来的影响进行了数值模拟，力图对时间变态带来的模拟结果的偏差有个全面和定量的认识。

P in Shule River Alluvial Fan Oasis in Gansu subsidized by CNSF. Through field geological and environmental observations and sampling, quartz OSL dating, organic carbon ~(14)C dating, as well as analysis of TOC,grain size and Pollen assemblage of the samples from ten sediment profiles in front fine grain sediment zone of the Shule River Fan, the results obtained as follows:(1)The vegetation evolution history on Shule River Alluvial Fan and circumjacent since about 13 ka B.P. could be divided into 6 phases: about 12.1-13.1ka, a sparse coniferous and broadleaf trees - shrub grassland, cold and wet climate; 9.2-12.1ka, shrub grassland, temperature rising but precipitation and humidity getting down; 5.8-9.2ka, sparse forest with the most flourish shrub grassland under the optimal climate; 4.3-5.8ka, coniferous and broadleaf mixed forests -shrub grassland, temperature rising slightly and getting dry; 4.3-2.8ka, grass vegetation and climate became more dry; 2.8-2.3ka, coniferous forests -shrub grassland, precipitation and temperature getting down, but a higher relative humidity.

本文依托于&甘肃疏勒河冲积扇5万年来古天气环境与古水文演化&项目，以疏勒河冲积扇为研究对象，通过对疏勒河冲积扇扇缘细土带全新世古天气和古水文演变进行了20余个剖面的观测和取样、石英OSL和~(14)C测年、粒度组成和TOC分析以及孢粉鉴定，获得了以下成果和熟悉：(1)距今约13ka年来冲积扇和周边植被演化经历了6个阶段：约13.1～12.1ka，以针叶林为主的针阔混交林～灌丛草原，天气冷湿；12.1～9.2ka，灌丛草原，气温升高，降水量较低；9.2～5.8ka，疏林灌木草原，植被茂盛，温度和降水最佳；5.8～4.3ka，以针叶树为主的针阔混交林～灌丛草原，气温较高，降水减少；4.3～2.8ka，草原植被，天气变干；2.8～2.3ka，针叶林～灌木草原，降水减少，温度降低，相对湿度有所增加。

Sediments of this system were sequentially extracted in natural granularity. The result showed that there was a good linear relationship between organic matter and org / bact P contents in sediments. This organic matter in sediments was the source of org / bact P. The total phosphorus in sediments dominated the content of total dissolved phosphorus and phosphate in interstitial water. In addition, there were good relatiohships between total phosphorus in sediment and the total dissolved phosphorus in interstitial water, and between total phosphorus in sediment and phosphate in interstitial water. FeP and AlP in sediments were correlative with Eh and phosphate in interstitial water, respectively. This showed that the FeP and AlP contents were affected by Eh in interstitial water and the total content of FeP and AlP dominated the content of phosphate in interstitial water.

对沉积物—间隙水中磷形态的连续提取分析发现，自然粒度下，沉积物中有机质含量与沉积物中有机/细菌聚合磷存在很好的线性相关性，说明沉积物中有机质是有机/细菌聚合磷的源；沉积物中总磷决定间隙水中总溶解性磷和溶解性磷酸盐的含量，并且总磷与间隙水中总溶解性磷和溶解性磷酸盐存在很好的相关性；沉积物中FeP和AlP分别与间隙水中的Eh和溶解性磷酸盐存在相关性，说明Eh的大小严重影响FeP和AlP的含量，但是FeP和AlP含量之和又主导着间隙水中溶解性磷酸盐的含量。

Based on the analysis on the measured hydrology and sediment data of Laolonghu waterway , one of the typical subsidiary in Zhujiang alluvial fan, the flow condition and sediment transport law are studied deeply, so as to know the sole and complex water dynamics characteristic, it can be referred to by related project application.

通过对珠江三角洲的典型联通汊河之一——劳龙虎水道的实测水文资料统计分析，深入研究了其水流流态、泥沙输移规律等各方面水文泥沙情况，以充分认识其独特且复杂的水动力特性，并期能为有关工程应用提供一些参考

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！