查询词典 silt

Results demonstrate that climate fluctuations recorded by the two boreholes correspond to the marine oxygen isotope stages. Thick layer of coarser grained fluvial deposits and the third layer of "hard mud" were deposited in the study area during MIS 6, reflecting a cold climate. The sediments became fine-grained and indicate a coastal marsh depositional environment during MIS 5. The second layer of "hard mud" was deposited during MIS 4. Fine-grained coastal marsh deposits dominated in the study area during early MIS 3, while lagoon-beach ridges prevailed during middle and late MIS 3, forming a layer of silt and fine sand in the coastal plain. The MIS 2 strata are composed of a typical sedimentary sequence with coarse grain in the lower section and fine grain in the upper section, i. e. yellowish grey or brownish yellow silt and brownish yellow or dark green "hard mud", respectively.

研究结果显示，两孔记录的古气候波动可与深海氧同位素曲线进行对比：对应于深海氧同位素曲线第6阶段(MIS6)，堆积厚层的河道相粗颗粒沉积及第3硬土层，反映当时气候寒冷；第5阶段(MIS5)，为滨海湖沼沉积，沉积物的颗粒显著变细；第4阶段(MIS4)，本区形成第2硬土层；第3阶段(MIS3)的早期，本区也发育滨海湖沼沉积，中晚期则形成潟湖—砂坝体系，在滨海平原区普遍发育粉、细砂层；第2阶段(MIS2)，地层由下粗上细的沉积序列构成，下部为黄灰、棕黄色粉砂，上部则为棕黄色或暗绿色硬粘土。

In general, the tidal flat along Laizhou Bay has typically developed, with the coarsest sediment, namely fine sand on the lower flat, and it grades shoreward into silty sand, sandy silt and silt.

总之，莱州湾的潮滩发育典型，低潮滩的沉积物最粗，为细砂，向陆依次演变为粉砂质砂、砂质粉砂和粉砂，皆呈带状与岸线平行分布。

Through comprehensive analysis of many researchresults about movements of soil water and salts and data about effective root zone from literature,it was determined that the appearance of silt clay loam layer or silt clay layer with more than60cm cumulative thickness or more than 20cm continuous thickness in the 0~100cm soil horizonwas one of the most important indicator for soil series classification.It was also determined thatthe solum structure patterns of 0~150cm were another important indicator for soil seriesclassification.

通过对大量有关土壤水分、盐分运移规律的研究成果和有关土壤根系活动空间的研究资料的分析整理，确定了0~100cm土体中出现累积厚度＞60cm或连续厚度＞20cm的粉砂粘壤土层或粉砂粘土层作为土系划分的重要指标之一；并有根据地确定土表至150cm的土体构型作为土系划分的重要指标。

The rate of subsidence has been decreasing from area near vertex of delta to the coastal zone and some place is even rising, particularly in the early formed area. What is the different in the coastal is that the rate of subsidence is still high and can sustain a long time. This is because the land subsidence in the delta is mainly caused by the consolidation of sediments if there is no human activity. Especially in the newly formed area, Qingshuigou sub-delta, the rate of subsidence was more than 50 mm/a in the begining and now is still higher than 10 mm/a. When the newly sediments discharged by the Yellow River landed on the subaquatic delta, its load can drive the concolidation of the silt, which is on the surface of the Bohai seafloor. The rate of consolidation of the silt will be decreasing quickly in the first years, but still a long time in the later time with a slow rate.

研究结果表明：现代黄河三角洲在以宁海为顶点的河口扇形区域，近期均经历了不同程度的地表下沉过程，但是随区域地理位置和时间的不同，地表变化空间差异性比较明显；三角洲顶点附近区域的下沉速率自上世纪末开始逐渐减小，后期甚至出现轻微的抬升；滨海沿岸附近地区的地表形变特征相对比较复杂，各期叶瓣相互叠置及其各类沉积物的不均匀分配，使由沉积物自然固结压实引起的地表形变具有显著的空间差异；目前，除清水沟流路叶瓣表现为快速沉降以外，其它滨海沿岸区基本上都表现为微弱的下沉。

The microorganism method to solves the landscape hydrophila group entrophication has the good function,is obviously degenerate the water body COD,also can suppress the growth of the chlorophyceae plant effectively;④Chemistry method maintenance water quality may oxidize effectively, degenerate the pollutant and some organic matter in water,can effective kill the algae;⑤The clear silt can eliminate the death algae and each kind of organic and inorganic substance,thoroughly eliminate the environment which the algae grow,therefore the clear silt to algaes government is the very thorough means.

微生物法对解决景观水体的富营养化有较好的作用，对水体COD的降解作用较明显，能够有效抑制绿藻类植物的生长；④化学方法维护水质可以有效氧化、降解水中污染物和一些有机物质，能够有效的杀灭藻类；⑤清淤能够把死亡的藻类和各种有机和无机物质清除掉，彻底清除藻类生长的环境，所以清淤对藻类的治理是很彻底的办法。

To explore new use of waste salt silt, F(superscript -) adsorbent was produced using waste salt silt of chloro-alkaline factory and acrylic acid to copolymerize, potassium persulfate as initiator, with which to treat high F(superscript -) water.

为了探索氯碱厂废弃盐泥的新用途，将氯碱厂废弃盐泥与丙烯酸等共聚，过硫酸钾作引发剂，制得了吸附率为86%~89%的F吸附剂，用于处理超标含氟污水。

The results showed that the ammonifying rate, nitrifying rate, nitrosifying rate and denitrifying rate of bacteria in pond silt were significantly affected by the biomass and population composition of bacteria, physio-chmical characteristics of pond silt and water quality.

结果表明：淤泥中细菌的氨化率、亚硝化率、硝化率和反硝化率在很大程度上受淤泥中有机物的含量、细菌数量和种群组成、淤泥的理化性质及水质情况的影响。

Weaker wave action in the estuary area, the river for several groups of bifurcation into the sea at the same time, the cross-flow of silt accumulation in both the volume of more than wave erosion, silt accumulation along the Fork Road extension to form a long strip big spit into the sea, so that was a bird foot delta-shaped appearance.

在波浪作用较弱的河口区，河流分叉为几股同时入海，各叉流的泥沙堆积量均超过波浪的侵蚀量，泥沙沿各叉道堆积延伸，形成长条形大沙嘴伸入海中，使三角洲外形呈鸟足状。

In this Paper taking key technology of road bed in road Han-Lin as study goal,the scientific experiment on physical and mechanical performance as well as law of vibration compaction and theory analysis are systematically made.The compacting mechanism and influence factors on filling road bed with silt are axplored .The effective construction technology on filling road bed with silt are put forward,The construction method are examined in constraction of road Han-Lin.

filling road bed ；本文以邯—临公路工程中的路基关键技术问题为研究目标，对含砂低液限粉土的物理、力学性能及振动压实规律进行了全面系统的科学试验及理论分析，探索了粉性土填筑路基的压实机理及影响因素，提出了一套行之有效的粉性土路基压实施工工艺，并在邯—临公路施工中得到了验证。

The tidal flat along Bohai Gulf extends from Haihe River Mouth to Dakou River. According to the results of field survey, the inter-tidal flat has obvious zonation. From the shore seawards, 4 zones can be identified, and they are depression polygon, inner depositional, erosional and outer depositional zones, and the associated sediment types are mud and clayey mud, mud, alternating laminae of silt and mud, and coarse silt, respectively.

渤海湾潮滩海岸从海河口以南到黄河三角洲北缘的大口河以北，据野外调查发现，这里的潮间浅滩具有明显的分带性，从岸向海可以分为四带，即龟裂带、内淤积带、滩面冲刷带、外淤积带，相应各带的沉积物为：淤泥与粘土质淤泥、淤泥、粉砂与淤泥互层、粗粉砂。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。