查询词典 sedimentation

The method comprises the following steps: according to the raw water quality, the change of the number of bacteria inside the sedimentation tank and the water quality of the backflush yielding water, the backflush yielding water in the sedimentation tank is collected and deposited in a backflush phase of a working period; supernatant fluid containing mass active bacteria and soluble nutrient elements reflow to the sedimentation tank; total or partial sediment containing soluble nutrient elements in an underlayer reflow to the sedimentation tank and is reutilized by mass microorganisms in the sedimentation tank, thereby replenishing the nutrient substrate needed for microorganism growth, proliferation and metabolism under the condition of the low nutrition substrate, and maintaining the ecological stability in the sedimentation tank.

该方法根据原水水质和生物滤池内部细菌数量的变化以及反冲洗出水的水质，将生物滤池工作周期中反冲洗阶段的反冲洗出水收集并沉淀，将其含有大量活性细菌和溶解性营养元素的上清液回流至生物滤池，下层含有不溶性营养物质的沉淀全部或部分回流至生物滤池，被生物滤池当中的大量存在的微生物重新利用，从而补充在低营养基质条件下，微生物生长、增殖和新陈代谢所必需的营养基质，维持生物滤池当中的生态稳定。

The results indicate that the sedimentation behavior of coal particles of CWS belongs to differential sedimentation and there is a conglobation between coal particles in CWS preparation. Stability of CWS prepared with lignin series dispersants is better than that prepared with naphthalene series, and the height and mean sedimentation rate of clarifying zone is about 68% of that of FDN when the dosage of additives is 1.0%.

结果表明，水煤浆中煤粒沉降行为为差异沉降，在水煤浆制备过程中，煤颗粒之间会发生团聚，掺1.0％GCL3S的水煤浆清液区高度及平均沉降速率仅为掺FDN的68％，木质素系分散剂制备的水煤浆稳定性能优于萘系。

Sedimentation anyslys of soil under the action of deadweight; 2 Sedimentation anyslys of structure in using; 3 Endogen force anyslys of structure in using; 4 Soil remolding type anyslys; 5 Homogenous flush works anyslys; 6 Anyslys of the structure sedimentation effects of different flushing amount at the same place; 7 Anyslys of the structure sedimentation effects of different flushing places; 8 Anyslys of the structure sedimentation effects of different horizontal flushing places; 9 Anyslys of the structure sedimentation effects of different vertical flushing places; Getting the different between the endogen force of common structure and that of slant structure.

对掏土纠偏过程做了以下9个方面的分析：1、土体在自重作用下的沉降分析； 2、建筑物在使用阶段的沉降分析； 3、建筑物在使用阶段的内力分析； 4、土体受扰动类型分析； 5、均匀冲水施工过程分析； 6、同一个地方冲水量大小不同对建筑物沉降影响分析； 7、不同沉井冲水对建筑物沉降影响分析； 8、进深不同的土层冲水对建筑物沉降影响分析； 9、不同埋深土体冲水对建筑物沉降影响分析。

According to the interaction between the cutting grains and the liquid medium, integrating the theoretic analysis with experiments, and referencing the experimental formula, the sedimentation law of cutting grains in the dynamic solid/liquid separator by compressing and filtering is discussed. The theoretical exploration and research are conducted on the grain-forcing situation, axial sedimentation, sedimentation in the centrifugal force field etc., and the final sedimentation velocity of the cutting grains is obtained in the separator.

文章从岩屑颗粒与液相介质之间的相互作用入手，采用理论分析和试验研究相结合的方法，参照经验公式，讨论了固液动态压滤分离机中岩屑颗粒的沉降规律，对动压机内颗粒的受力情况、轴向沉降、离心力场沉降等问题进行了理论探讨和研究，得出了岩屑颗粒离心沉降末速度。

The process of dealing with different sedimentation of a hospital in soft groundsill is introduced. The cause of the sedimentation accident is analyzed and the advantage and disadvantage of the disposal of using anchoring pile to stop sedimentation or separating the two buildings are compared.

提要］ 介绍了针对软土区某医院一高、低层建筑发生过大差异沉降的处理过程，分析了沉降事故产生的原因，并比较了采用锚杆静压桩止沉处理方式和采用脱体处理方式的优缺点，工程最终采用脱体处理方式。

Some innovative results are listed below:1、According to the lithologic characters,lithofacies,genetic classification and the geomorphy,the Quaternary system is divided into piedmont-gully\'s and plain\'s. The piedmont-gully\'s Quaternary sediment,which is about 3～20 meters in thick,is in the western hills of the study area.The plain\'s Quaternary sediment is widely distributed in the study area,which is about 30～60meters thick and become thicker from southwest to northeast.2、The Quaternary sediments of plain can be divided into five sedimentary cycles.The Late Pleistocene series Quantan group,at the bottom of the Quaternary System,is constituted by a fluvial facies-river and lake facies sedimentary cycle. The Late Pleistocene series Jiashan group,at the middle of the Quaternary sediment, is constituted by two fluvial facies-neritic facies-river and lake facies sedimentary cycles.The Holocene series Binhai group,at the upper of the Quaternary sediment, is divided into three parts,the under layer and middle layer are constituted by two littoral facies-river and lake facies sedimentary cycles,the upper layer is constituted by paludal facies,which was deposited at the lower-lying land like West Lake, Jiangcun-Gu dang,Xianghu lake,and coastal-estuary facies in other area.3、Folding and fault activities were weak in Quaternary and the tectonic activity had little influence on the Quaternary sedimentation.The ancient landforms,the evolvement of the river system and transgression were the main elements which controlled the Quaternary sedimentation in Hangzhou.The ancient landforms formed the basis of the Quaternary sedimentation.The evolvement of the river system and transgression individually or jointly controlled the Quaternary sedimentation of this area.4、The alternation of the climate was the main reason for the evolvement of the river systems and transgression,and it\'s also the reason why the Quaternary system of Hangzhou has the special sedimentary structure which is called soft interbed with hard layers.

通过研究取得了以下成果：1、根据岩性、岩相、成因类型和地貌特点，将本区第四系划分为山麓沟谷区沉积和平原区沉积：山麓沟谷区第四系主要分布于西部丘陵地区，厚度较薄且变幅大，一般厚3～20m；平原区第四系广布分区，由南西向北东逐渐增厚，一般厚30～60m.2、平原区第四系自下而上大体由五个完整或不完整的沉积旋回构成：底部上更新统全塘组，由河流相—河湖相的沉积旋回构成；中部上更新统嘉善组，由河流相—浅海相—河湖相两个沉积旋回构成；上部全新统滨海组，其下中两段由滨海海湾相—河湖相的两个沉积旋回构成，上段由西湖、蒋村—古荡、湘湖等低洼处沉积的湖沼相和其他地区沉积的滨海河口相构成。3、第四纪以来，研究区内褶皱、断裂活动微弱，构造运动对第四系沉积的影响不大，古地形、古水系的发育、变迁和海侵是杭州市第四系沉积的主要控制因素：古地形构成了第四系沉积的基底，水系与海侵在其后的不同阶段或分别或联合的主导了区内的第四系沉积。4、水系的发育、变迁和海侵的共同原因是天气变化，正是由于第四纪以来"冷热交替"的天气特点形成了杭州市第四系"软硬互层"的特殊沉积结构。

The invention provides a system used for recycling urban automobile-washing water, which is a system formed by organic combination of a pretreatment unit, a mechanical treatment unit and a control unit, wherein, the pretreatment unit comprises a fence and a sedimentation tank, and chemical treatment; the fence is arranged on an inlet of the sedimentation tank; the mechanical treatment unit adopts a centrifuge and is arranged on an outlet of the sedimentation tank; and the control unit comprises a peripheral circuit, a singlechip and a variable-frequency motor.

本发明提供的城市洗车用水循环利用系统，是由预处理、机械处理和控制单元的有机组合来的系统，其中：预处理单元包括栅栏以及沉淀池和化学处理，栅栏设置在沉淀池的入口处；机械处理单元采用离心机，它设置在沉淀池的出口处；控制单元包括外围电路、单片机和变频电机。

The research leads to following conclusions: A The age of the ferromanganese contacting with the upper phosphate layer is 14.9 Ma; B The crust had been grown continually without sedimentation interruption since 14.9 Ma, suggesting that it can be used to rebuild the environment of palaeo-ocean and palaeo-climate from 14.9 Ma to 0 Ma; C The sedimentation interruption between the ferromanganese and the upper phosphate layer lasted around 4 Ma; D Between 19 Ma and 22.7 Ma, great phosphatization event happened in this area, which might cause the sedimentation interruption from 22.7 Ma to 14.9 Ma; E The ferromanganese crust began to grow from 75 Ma.

对超微量Sr同位素测试得到的富钴结壳磷酸盐年龄进行分析认为：(1)上部富钴结壳与上层白色磷酸盐化层接触部位的年龄为14.9 Ma；(2)自14.9 Ma以来，结壳的生长是连续的，沉积间断发生的可能性非常小，该样品可以用来进行14.9 Ma年以来古海洋、全球变化的重建工作；(3)上层白色磷酸盐化层与其上部的富钴结壳之间存在4 Ma的沉积间断；(4)19 Ma~22.7 Ma左右在该区发生过大规模的磷酸盐化作用，磷酸盐化作用可能造成磷酸盐化时期(19 Ma~22.7 Ma)和之后4 Ma(19 Ma~14.9 Ma)富钴结壳的沉积间断；(5)结壳的初始生长年龄在75 Ma左右；(6)老结壳的生长速度要远低于新结壳的生长速度。

There were significant differences between RA and non-RA groups in morning stiffness, symmetric arthritis, rheumatoid factor positivity, erythrocyte sedimentation rate, C-reactive protein and synovial hyperplasia, enhanced pannus, bone marrow edema as well as bone erosion.

晨僵、对称性关节肿胀、类风湿因子(rheumatoid factor， RF)阳性、血沉(erythrocyte sedimentation rate， ESR)增快、C反应蛋白(C-reactive protein， CRP)值升高诸指标在RA组与非RA组之间具有显著差异性。MRI各主要征象中滑膜增厚、血管翁强化、骨髓水肿、骨侵蚀诸指标RA组与非RA组之间具有显著差异性。

The present research situation about AB process in and out of our country was analyzed in this paper. In addition to a concentrated study of the factors affecting sedimentation performance of A-step activated sludge, the rule of microbe multiplication, yield of activated sludge in A-step and treatment of low-concentration sewage were also involved in this paper. The main conclusions are as follows:(1) The study on factors affecting sedimentation performance of A-step activated sludge shown that the inflow SS distinctly improve sedimentation performance of activated sludge, the less influent SS makes the sludge bulking easy, and the pythogenous sewage evidently worsen sedimentation performance of activated sludge.

本文分析了国内外AB工艺的研究现状，对A段活性污泥沉降性能的影响因素；A段的微生物增殖规律、活性污泥产量以及A段工艺处理低浓度城市污水等问题进行了试验研究，得出了以下结论：（1）对A段活性污泥沉降性能影响因素的研究表明：进水中的SS对污泥沉降性能有明显的改善作用，如果进水中SS较少，易导致污泥膨胀；而腐化污水对活性污泥的沉降性能有显著的不良影响。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。