查询词典 sediment sampler

The content of radioactive elements in sediment is related to the scale of sediment granularity and lithology, being high in argillaceous sediments e.

同时，放射性元素含量的高低还与古气候环境有关，温暖潮湿的环境放射性元素含量较高，凉爽干燥的环境含量较低。

Considering complicated conditions of the coastal dynamic environment, sediment dynamics, and together with the immature sediment itself, the predicted results will be somewhat limited if only with numerical model. So, in order to obtain microcosmic quantitative assessment and macroscopically understanding, numerical model is combined with field observations in the thesis. Firstly, the tidal current, SSC distribution, benthal deposited materials were basically analyzed by field observations. Then, the tidal current, SSC distribution, and the erosion and accumulation of the seabed were simulated with the numerical model of ECOMSED.

但由于海岸动力环境多变，泥沙运动复杂，加之泥沙问题本身的复杂性，如仅用数学模型，其预测结果将受到一定的限制，故本文采用实测调查与数学模型计算相结合的方法，宏观把握，微观量化，在掌握岚山港西突堤工程所在海域潮流、悬沙量分布、表层底质沉积物类型及特点基本态势的基础上，紧扣开发工程可能引起潮流场变化，分析工程后悬沙量、海底冲淤变化及其空间分布，进而建立潮流作用下的泥沙输运数学模型，首先比较好地模拟目前岚山港西突堤工程附近海域的潮流场和悬沙场，然后预测海湾沿岸可能引起的冲淤强度变化和冲淤区域的空间分布。

Based on the testing and analyzing the organochlorine insecticides (such as HCHs, DDTs and dieldrin) and PCBs contents in the sediment and water body covered the sediment, this paper plots and describes the various organic pollutants distribution, simultaneously analyzes the organic pollutants sources according to the main pollution sources along the coastwise of Daya Bay.

本文通过对大亚湾海域上覆水和沉积物中有机氯农药(HCHs、DDTs和狄氏剂等)和多氯联苯等有机污染物含量的调查分析，分别对各有机污染物的分布状况进行了描述，同时根据目前大亚湾海域及其沿岸主要污染源的分布状况对各有机污染物的来源进行了初步分析。

Based on the compared and simulated experiment, it was quantitively studied on the effect of macrobenthos (Ilyoplax deschampsin and Corbicula fluminea) on the exchange of nutrient across the sediment-water interface and the early diagenesis of nutrient in the tidal flat sediments from the Yangtze Estuary. Ilyoplax deschampsin and Corbicula fluminea affected the exchange of nutrient across the sediment-water interface by the different biological mechanisms.

本文依据长江河口滨岸潮滩大型底栖动物的自然分布特征，选取了两段典型的研究区域－崇明东部潮滩和浒浦岸段边滩，运用实验模拟和对比分析方法，定量地研究了大型底栖动物谭氏泥蟹和河蚬对潮滩生态系统中营养盐的界面扩散及其早期成岩变化的影响。

The gravity or shake corer can be adopt for the soft sediment, and the rotary corer for the hard sediment; 3 carry out the core transfer technique under pressure.

对松软的非岩性沉积物采样时，可采用重力驱动或震动冲击驱动保真采样装置；对硬质岩化的沉积物采样时，可采用回转式保真采样装置。3）重点开展沉积物样品无压降转移技术。

The characteristics of sediment dynamics and the continued sediment time are discussed through analysis of various cycles of datum plane.

通过各种级别基准面旋回特征分析，讨论了穆棱组的沉积动力学特征和沉积延续时间。

The river patterns of the study area were analyzed by the latest channel pattern discrimination in the last glacial maximum and deglaciation of the Late Pleistocene. The hydrology, sediment, environment parameters of the ancient channel in the study area, width-depth ratio F =22.22, suspended sediment concentration M =10.10%, channel curvature P =1.52, meander wavelength L =

然后应用最新河型判别方法，分析判别晚更新世末次盛冰期和冰消期研究区埋藏古河道的河流类型为辫状型；并分析得到研究区古河道的宽深比（ F ＝22.22）、悬移质含量（ M ＝10.10％）、河道弯曲率（ P ＝1.52）、河曲波长（ L ＝1 647 m）等古水文泥沙环境参数分类指标。

The evolvement of Diffluence River is the more complicated than Single River, because the diversion"s thing is changed with channel"s distortion. The river diversion is the general reflection of a good many factors, which mutually influence and adjust. In particular, when main channel occurs scouring-silting change, which causes the movement of water, sediment, and river bed in river system, the diversion will more be changed, with the study on division of discharge and sediment been further into, some practical engineering problem are solved.

目前，在对河道分流的认识与治理开发上虽取得了不少成绩，但随着社会经济的发展，人们对分流河道演变规律的认识与治理要求越来越高，随着人类对河流改造活动的加剧，河道的水沙条件可能发生急剧的改变，这些变化有可能使分流分沙的缓慢变化加剧，甚至改变原来的分流规律，许多研究者对分流分沙进行了较深入的研究，并能较好地解决了工程实际问题。

The basal geomorphology structure of the Tidal-Basin System of the Tiaozini Sandbanks is watershed and tidal creek system. We analyses its formation, evolvement, geomorphology characters and development and discusses the main influence factors which is water, sediment and space. We divide the evolution phases which is formation phase, autumn phase and contabescence phase. In the end we confirms its main functions, which is discharging the folium water on the tidal flat of the Tidal-Basin in the end of the ebb-tide, transporting sediment to Tidal-Basin through tidal creek systems, confining the swing range of the dynamical axis of flood tide or ebb tide, balancing the dynamical status of the South and North. At the same time, we compare coastal tidal-basin and sandbanks tidal-basin on geomorphology characters, formation causes, style and so on.

条子泥潮盆—潮沟系统的基本地貌结构为分水滩脊和潮沟系统，本文分别对它们的形成与发育、地貌特点及动态变化进行了分析，并探讨了影响其发育的主要因素，即来水条件、来沙条件、空间条件，划定了其主要发育阶段，即形成期、成熟期、衰亡期；在上述分析的基础上确定了潮盆—潮沟系统的主要功能，即通过潮沟系统渲泄落潮后期滞留在其潮盆范围内的滩面薄层水、通过潮沟系向潮盆内部输入或输出泥沙、限制涨落潮动力主轴摆动范围、平衡南北两侧动力状态；同时针对岸滩潮盆—潮沟系统与沙洲潮盆—潮沟系统的地貌特征、成因类型等进行了对比分析。

Concentrations of heavy metals in the suspended matter and sediment are not obviously affected by elutriation of stream and dilution of tributary stream. This feacture does not change even in the distant reach downstream. Therefore, the suspended matter and sediment are the potential source of heavy metal contamination to the waters for industry and agriculture use.

河流的地质、水文特征决定了河流悬浮物和沉积物成为河流中重金属搬运迁移的主要载体，在几十公里的下游水域中悬浮物和沉积物中重金属含量没有受到其它支流清澈水体的稀释，成为下游工、农业用水的潜在污染源。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！