sand stream 中文意思是什麼
sand stream
解釋
流沙河-
The daling river is a river of much bedload. the average of the loss sand can reach 21434. 3 thousandston, and the ratio is 18. 08 kg / m3. to this day, the ratio of sandiness by measuring in the biggest broken surface is 172 kg / m3. the baishi reservoir lies in the city named beipiao which in the middle reaches of the daling river in liaoning province, the income of the reservoir from the trunk stream is 11457 thousandston, and from the branch of the river is 1160 thousandston
大凌河是個多沙河流，多年平均懸移質輸沙量可達2143 . 43萬噸，平均含沙量為18 . 08kg m ~ 3 ，實測最大斷面含沙量為172kg m ~ 3 ，白石水庫位於大凌河中游的遼寧省北票市，年入庫沙量，幹流為1145 . 7萬噸，支流?牛河為1160萬噸。 -
A brief introduction is given to the treatment of the zeya dam foundation, principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir. as for the excavation of the sand - gravel zones, except the toe slab and its 1 / 9 bottom width down stream, the alluvial layers are excavated to the micro - weathered rocks, while the other sections remain unexcavated. regarding to the treatment of the fracture zones, concrete filling is used for the toe slabs and semi - permeable materials are used for other section. according to the construction characteristics, a filter is placed in the down stream embankment foot. to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted. as a result safety, economic benefit, convenience in construction and good performace are achieved
簡要論述澤雅水庫面板堆石壩壩基處理和防滲的原則及設計要點.趾板基礎和堆石體各區砂礫石基礎開挖，除趾板與其下游1 / 9底寬范圍以及壩腳挖除沖積層至弱風化（局部微風化）基巖外，其餘部分均予以保留.斷層破碎帶處理，趾板部位採用混凝土塞，其它部位採用半透水料置換，並根據本工程特點在下游壩腳加設了反濾層.為提高壩基的整體性和防滲性能，對趾板進行了固結和帷幕灌漿.達到了安全、經濟、便於施工的目的，運行情況良好，可為面板堆石壩的設計和研究提供參考與借鑒 -
Hydraulic fill dams are built of sand and silt brought into the dam in a stream of water, usually through a pipe.
水力沖填壩通常是用一根管子利用水流把砂和粉沙運到壩體處築壩。 -
A strike-valley sand is deposited in the drainage course of a subsequent stream valley.
走向谷砂巖是在次生河谷水系中沉積的。 -
The stream had washed ( out ) a channel in the sand
小河在沙地上沖出了一條溝 -
The prospector panned out bits of sand and gravel scooped from the bed of a stream
探礦者淘選從河床里挖出的少量含金泥沙和砂礫。 -
To braided stream deposit, the fluvial sand body is distribute largely and continuously, so the heterogeneity is poor relatively, the relation of injection and production is better in the case of rare wells, about all wells have come on water, only in some thin sandbodys or bad physical layers there is some low flooded strata
對辮狀河砂體，平面上大面積連續分佈，在平面及層內非均質性弱，在較稀的井網下注采關系就較完善，目前平面上幾乎所有井點都已水淹，只有局部由於砂體厚度變薄，物性相對變差而存在一些低水淹部位。 -
The results indicated that with the change of water and sand condition and the altitude of tongguan and the development of the industry and agriculture in recent decades, the water environment of wei river had changed largely, which were shown as follow : annual runoff and seasonal flood decreased sharply ; water stream of large discharge decreased and the range of runoff decreased greatly ; sediment load per year decreased generally, sediment concentration of water increased, and the sand silting up was serious ; water channel swung and shrank, and water regime deteriorated ; frequencies of big floods decreased obviously, and hyper concentrated flood increased obviously ; water levels of the same runoff rose universally, and the frequencies of the floods increased and aggravated ; water pollution was very serious
結果表明，近期隨著水沙條件、潼關高程等的變化及工農業的發展，渭河的水環境發生了巨大變化，表現在年水量及汛期水量銳減；大流量級水流出現次數減少，水量減少幅度大；年輸沙量總體減少，河水含沙量增大，泥沙淤積嚴重；河道向擺動型發展，河道萎縮，河勢惡化；大洪水發生的次數顯著減少，高含沙小洪水明顯增多；同流量洪水位普遍抬高，洪災發生次數增加，洪災加重；水質污染極為嚴重。 -
For the significant strata, the upper jurassic penglaizhen formation and middle shaximiao formation, high resolution stratigraphy map making has been carried out, and the continuity and occurrence of the meanding stream delta sand body has been discovered
對重點層系（侏羅繫上統蓬萊鎮組和中統沙溪廟組）進行高解析度層序地層學編圖，揭示曲流河三角洲砂體的連續性及分佈規律。 -
Abstract : the effective shear stress of sediment transport is analyzed theoretically and tested by experimental data. the result shows that the effective shear stress is neither the overall shear stress nor the sand grain shear stress, but the geometric mean of these two stresses. the effective shear stress not only generalizes the flow intensity but also summarizes the flow intensities of mean flow velocity, stream power and unit stream power
文摘:本文通過理論分析及實測資料檢驗表明，無論對於何種泥沙運動狀態，決定泥沙運動的有效切應力既不是沙粒切應力又不是全部切應力，而是介於兩者之間，近似為沙粒切應力與全部切應力的幾何平均值.這一有效切應力不但是對切應力類水流強度指標的總結，還可以概括平均流速和水流功率等水流強度指標 -
The paper puts forward the structure of debris - retaining works system, layout consideration and construction principle for the coarse sand concentrated coming area, time sequence of the works construction of " large - scale first and small - scale second ", " downstream first and upper stream second ", and " carrying out section by section " and some problems demanding prompt solution according to the present facts and ; to speed up the preparation of a large - scale debris - retaining reservoir ; to draft the standards for a large - scale debris - retaining reservoir as quick as possible and ; lay emphasis on the schedule of various projects and correct understanding and fully playing the function of key dams through the analysis on achievements and problems of debris - retaining works building and combining with the gully characteristics of coarse sand concentrated coming area
摘要通過對粗泥沙集中來源區攔沙工程建設成就與問題的分析，結合粗泥沙集中來源區溝道特徵，提出了粗泥沙集中來源區攔沙工程體系的構成、布局思路、建設原則，提出了「先大后小」 、 「先下後上」和「分段實施」的攔沙工程建設時序，並針對當前工作實際，提出了亟待解決的幾個問題：加快大型攔泥庫前期工作步伐、盡快制定大型攔泥庫標準、重視各類工程實施進度以及正確理解和執行規范、充分發揮骨幹壩的作用等。 -
It uses a thin stream of falling sand to measure time
它使用一小股落下的沙子來計算時間。 -
The chung chi alumni footpath that winds along the streams has been scoured by years of rainfall and covered by quantities of sand and mud. an inspection of the banks of this stream in early 2003 showed multiple areas of collapse and the stream blocked by the resulting mud
崇基校友徑溪流，經過長年雨水沖刷，大量沙泥沉積，在2003年初檢查溪流兩旁的斜坡已有多處崩塌，溪澗淤泥阻塞。
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