sediment discharge造句
造句與例句
手機(jī)版
- The design of pipes depends on comparative power requirements to deliver a given sediment discharge .
在設(shè)計(jì)管道時(shí)，必須比較其對(duì)于輸送一定量的泥沙所需要的功率。 - Fractal characteristics of discharge and sediment discharge in the pearl river delta
西北江三角洲來(lái)水來(lái)沙的非線性分形特征 - Linkage of grain size information with river sediment discharge and estuarine deposition at the pearl river estuary
河口沉積與粒度信息之間的聯(lián)系 - Suspended sediment has three transport modes , and the relationship between tidal discharge and sediment discharge is also studied
懸沙運(yùn)動(dòng)模式與水流基本一致，也存在三種不同形式的懸沙環(huán)流輸移模式，并分析了潮流量與輸沙率之間的關(guān)系。 - There are lots of factors which influence the evolvement law of sediment discharge , and it is very difficult to be known and gained , it results in low precision of simulation and forecast
摘要影響輸沙量演變規(guī)律的前期因素比較多，且難于確定和提取，這就造成對(duì)輸沙量的擬合和預(yù)測(cè)精度較低。 - Overall , the average deposit slope , changes in cross sections , scouring hole , and sediment discharge of downstream channel of dam no . 4 increased with deeper opening depth of dam no . 3
由實(shí)驗(yàn)結(jié)果得知，隨三號(hào)壩壩體在斷面拆除深度加深時(shí)，四號(hào)壩下游的淤砂坡度、斷面變化、沖刷坑與輸砂量變化會(huì)隨之增大。 - Based on analysis of chaos characteristic of sediment discharge time series , bp neural networks model based on chaos phase space is proposed to forecast the sediment discharge through embedding dimension
在對(duì)輸沙量時(shí)間序列混沌特性分析的基礎(chǔ)上，利用嵌入相空間來(lái)確定前期影響因子，建立了基于混沌相空間技術(shù)的bp神經(jīng)網(wǎng)絡(luò)模型。 - The problems from sediment discharge for de - siltation and the relative stability of fiver channel can be solved through the study on the main indexes such as flow rate , silt concentration and etc . based on the analysis of sediment - carrying capacity of flow and the law of river channel evolution
在分析水流挾沙力和河槽水力形態(tài)規(guī)律的基礎(chǔ)上，研究調(diào)水調(diào)沙的流量、含沙量等主要水沙指標(biāo)，可以解決河道輸沙減淤和河槽相對(duì)穩(wěn)定問(wèn)題。 - It has conducted physical model tests on five plans of different operational modes of sanmenxia reservoir and different combination of sediment discharge conditions and analyzes the influence of different sediment discharge conditions and different operational modes to scour and fill of reservoir area
摘要通過(guò)實(shí)體模型對(duì)三門(mén)峽水庫(kù)不同運(yùn)用水位和水沙條件組合的5組方案進(jìn)行了試驗(yàn)，對(duì)比分析了不同水沙條件和不同運(yùn)用水位對(duì)庫(kù)區(qū)沖淤的影響。 - A statistical model is developed and indicates high correlation between the accretion of modem yellow river delta and the water and sediment discharge of yellow river , and the model shows the necessary water and sediment discharge per year to ensure the equilibrium of alluvion and erosion of yellow river delta
黃河三角洲凈造陸面積與黃河入海水沙量的統(tǒng)計(jì)模型說(shuō)明，黃河三角洲沖淤動(dòng)態(tài)平衡時(shí)的黃河入海徑流量為71 . 93億m ~ 3 a ，輸沙量為1 . 853億t a 。 - It's difficult to see sediment discharge in a sentence. 用sediment discharge造句挺難的
- In the past , more emphasis has been put on the flow pattern and the division ratio of water and sediment discharge . in order to study the division characteristics , a theoretic model is proposed in this thesis , which combines the plan configuration of channels with the minimum energy dissipation rate theory
本文將河流動(dòng)力地貌學(xué)中的平面形態(tài)和最小能耗率理論相聯(lián)系，研究分汊河道的分流特性，并推導(dǎo)理論分流模式；另一方面，通過(guò)建立二維水流數(shù)學(xué)模型，與理論分析結(jié)果進(jìn)行比較。 - Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively , quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made , and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry . it is found that the accretion of modem yellow river delta is becoming less and less , what ' s more , erosion is even more than alluvion in some recent years . diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現(xiàn)代黃河三角洲沖淤演變時(shí)，從1976年黃河改道清水溝流路入海到2000年，整個(gè)黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢(shì)，甚至出現(xiàn)凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開(kāi)始快速，后來(lái)逐漸變慢；清水溝河嘴大量淤積，淤積速率開(kāi)始迅速，后來(lái)逐漸變慢，甚至出現(xiàn)凈蝕退；清水溝河嘴南側(cè)到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩(wěn)定。 - Complicated hydrologic and geographic conditions , and the large scale of the xiaolangdi hydraulic project on the yellow river are introduced briefly . three desilting tunnels are designed to meet the requirements of flood control , sediment discharge and runoff regulation . according to the performance requirements of desilting tunnels , the tunnel lining down - stream of the grouting curtain is designed to be post - tensional prestressed lining . on the basis of investigation and research , experiements and analysis , the unbonded prestressing system is used . it is the largest unbonded prestressed tunnel lining project in the world , and the first one in china
簡(jiǎn)介黃河小浪底水利樞紐復(fù)雜的水文、地質(zhì)條件以及龐大的工程規(guī)模.該樞紐設(shè)計(jì)有3條排沙洞，擔(dān)負(fù)著泄洪、排沙、調(diào)節(jié)徑流和保證進(jìn)水口不被泥沙淤堵的任務(wù).根據(jù)排沙洞的水庫(kù)運(yùn)用要求，灌漿帷幕下游排沙洞洞身段設(shè)計(jì)為混凝土后張預(yù)應(yīng)力隧洞.通過(guò)大量的調(diào)研、試驗(yàn)、分析論證，在施工前確定該預(yù)應(yīng)力方案選用無(wú)粘結(jié)預(yù)應(yīng)力系統(tǒng)，成為目前世界上規(guī)模最大的無(wú)粘結(jié)預(yù)應(yīng)力隧洞襯砌工程，在國(guó)內(nèi)尚屬首例 - Considering the influence of dynamical factor of sediment discharge as well as the difficulty of calculating number of input cell , the model is provided with strong nonlinear mapping capacity and applied to simulate and forecast monthly sediment discharge of longchuan river watershed , the outcome is reasonable with higher precision
模型既能考慮到影響輸沙量時(shí)間序列的動(dòng)力因子，又能解決網(wǎng)絡(luò)的輸入單元數(shù)確定的困難和利用神經(jīng)網(wǎng)絡(luò)超強(qiáng)的非線性映射功能，通過(guò)對(duì)龍川江流域控制站月輸沙量的擬合與預(yù)測(cè)表明其結(jié)果合理，預(yù)測(cè)精度較高。 - So far as the alluvial fiver is concerned , the sediment - carrying capacity of flow and hydraulic geometry of river channel can be regulated by regulating the composition of flow rate , silt concentration and sediment ( water and sediment regulation ) during water and sediment discharge ; with which the relative balance for water and sediment discharge and the river channel evolution can be obtained
摘要沖積性河流的河床在輸水輸沙過(guò)程中，調(diào)節(jié)流量及含沙量和泥沙組成（調(diào)水調(diào)沙）可以調(diào)節(jié)河床水力幾何形態(tài)和水流挾沙力，追求水沙輸運(yùn)和河床演變的相對(duì)平衡。 - The results show that reducing the water level of dam front can regulate the location of scour and fill of reservoir area and be advantageous to scouring of reservoir area , reducing the elevation of tongguan , especially to the scour of channel in reservoir region and the elevation reduction of tongguan under the favorable conditions of sediment discharge
試驗(yàn)結(jié)果表明，降低壩前水位可以調(diào)整庫(kù)區(qū)淤積部位，有利于庫(kù)區(qū)的沖刷和降低潼關(guān)高程，但有利的水沙條件對(duì)庫(kù)區(qū)河道的沖刷和降低潼關(guān)高程更明顯。
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