downstream water 中文意思是什麼

downstream water 解釋
下游水
  • downstream : adv. ,adj. 順流（的）；在下游（的）。
  • water : n 1 水；雨水；露；〈常作 pl 〉 礦泉，溫泉；藥水。2 〈常 pl 〉水體；水域；水道；海；湖；河；海域；...
  1. In arid climates, surface water is generally better than ground water in headwater areas, but poorer downstream.

    在乾旱氣候的上游區，地表水一般較地下水好，但下游的地表較差。
  2. Using the model experiment data, the authors calculate the decreased percentage of water jump length, unit width hydraulic jump volume and the water depth downstream of the jump ; and also calculate the energy dissipation rate of dentoid baffle, it is concluded that the device of dentoid baffle can increase the energy dissipation rate of hydraulic jump theory and decrease the engineering cost

    計算了新增齒墩設施的消能量，同時計算了新增齒墩設施的躍后水深、水躍長度和單寬水躍容積減少的百分數。結果表明，採用齒墩設施，可增進消能作用，並取得顯著的經濟效益，達到附加射流水躍理論所預期的效果。
  3. The water current flows over the top of the dentoid baffle to the hydraulic jump as additional momentum. while it is cooperated with a stilling basin, the flowing condition emerged in the basin may be improved greatly and the length and downstream water depth required by the basin can be decreased to a great extent. such an appliance may be also used to solve the problems of insufficiently dissipating water flow energy and aerating flow, which are often faced with those hydraulic engineering constraction as acted by high waterhead, great specific discharge and low froude number

    本文通過齒墩頂部的擴散水舌所形成的附加射流，從上部射入水躍，即可改善消力池內的水流流態，又可降低第二共軛水深，減小水躍長度，增進水躍消能效果，同時還能解決大單寬、低佛勞德數條件下摻氣和消能不足的問題，試驗證實它是一種安全、經濟的消能工。
  4. Is the water polluted at source or further downstream ?

    河水是在源頭還是在流出之後受到污染的？
  5. Stream standards refer to quality of receiving water downstream from the origin of sewage discharge.

    水體標準是指污水排放點下游的受納水體的水質。
  6. The salt water, being more dense, flows upstream under the fresh water which is flowing downstream.

    淡水在上層向下流動，比重更大的鹽水在下層逆流向上。
  7. Abstract : through study on energy dissipation of goupitang project on the wu - jiang river, the velocity field in the water cushion pool downstream ski - jump or drop was measured by hot - film anemometers on a fine model with scale 1 380

    文摘:結合烏江構皮灘水利樞紐工程消能問題研究，用熱膜流速儀在比尺為1 380的精細模型上量測了拱壩挑跌流在水墊塘內的流速場，並由試驗成果分析了淹沒射流在水墊塘內的消能過程，計算了消能率。
  8. Moving downstream with animal feces in storm water runoff or with human waste in sewage overflows and septic - tank leaks, the waterborne microbes can cause liver disease, respiratory infections and potentially fatal gastrointestinal disorders

    不論是隨著暴雨逕流而來的動物糞便，或是污水排放管、化糞池滲濾系統中的人類排泄物順流而下，水媒微生物都會引起肝病、呼吸道感染，以及可能致命的腸胃疾病。
  9. The paper discusses the methods of multi - objective ecological operation of reservoirs, which covers the establishment of legislation systems ; water demands for the basic ecological functions of downstream river channel ; reservoir discharge patterns simulating natural hydrological regimes ; regulation and control of sedimentation and eutrophication of reservoirs ; mitigation of the influences by water temperature stratification ; the operation techniques in pollution prevention and connectivity reinforcement of water systems

    文中討論了水庫多目標生態調度的方法，包括建立相應法規體系；保證維持下遊河道基本生態功能的需水量；模擬自然水文情勢的水庫泄流方式；進行水庫泥沙調控及水庫富營養化控制；減輕水體溫度分層影響；進行防污調度以及增強水系連通性等方面的調度技術。
  10. ( accession numbers : ay184425 - ay184440 ). combined with other several full 12s rrna sequences of chinese water deer, montijac, water deer, cow, horse, goat and tragulus retrieved from genbank database, the whole set of sequences was utilized for downstream analysis based on theories and models in molecular phylogeny, whereas the secondary structure of 12s rrna was predicted and analyzed based on present small subunit of ribosome model

    將上述序列與從genbank檢索到的獐、麂、水鹿、牛、馬、羊、鼷鹿的12srrna基因全序列一起，通過應用分子系統學理論與模型分析序列數據，以及對12srrna二級結構的分析，得出了以下主要結論： （ 1 ）用最小進化方法（ me ）和鄰接法（ nj ）對12srrna基因的全序列構建分子系統樹的拓撲結構基本相同。
  11. Many geological and hydrological factors of the river section, where the yellow river water intake engineering is laid out, such as the capacity of the reservoirs along the river section upstream and downstream, the rate of the flow discharge, the erosion and silt of the watercourse, the form of the riverbed and the water current, ice tuck, the convergence of the upstream branches of the river section, flood crest, sand crest size, the capacity for flood discharge of the watercourse, the effect of flood control structure around and the impacts on surrounding environment and the third person " s legitimate rights and interests, should be considered

    黃河取水工程的布設要考慮工程所處河段的地質水文等諸多因素。如該河段上下游水庫的庫容，泄水流量、河道沖刷、淤積、河床形態、水流形態、冰塞、河段上游的支流匯入、洪峰、沙峰的大小、河道行洪能力的大小、周圍防洪工程的影響及對周圍環境和第三人合法權益的影響等等。
  12. A new method is presented. the travel time, including the time delays associated with overland folw pathways, is obtained. it is expected that the hillslope velocity and the stream velocity are different, and different equation is used. in the method, the fact that velocity increases going downstream in river systems is taken into account. after the travel time of each cell being calculated, the frequency distribution of the times of arrival of individual water droplets at the catchment outlet - giuh, is obtained

    提出了一種匯流時間計算方法，匯流時間中包括坡地漫流時間和河道匯流時間。方法中坡地單元的匯流速度與河道單元的匯流速度採用不同的計算公式，同時考慮流速沿河道向下游的變化。流域中每一個網格單元的匯流時間得到后，將其看作隨機變量，進行統計分析后，得到匯流時間的頻率分佈? giuh 。
  13. By computing the water level and sedimentation processes with and without considering the extension of flow path, the results show that the effect of the river mouth path extension on the sedimentation of the trail channel is a longer period of evolution for several years or even over 10 years, and furthermore, the effect becomes weaker and weaker gradually from downstream to upstream in general

    通過比較考慮和不考慮入海流路淤積延伸2種情況的計算水位和淤積量的變化得出：單一的河口延伸對下遊河道淤積的影響過程是一個相對較長的過程，需要幾年、甚至十幾年的發展，影響程度自下游到上游逐漸減弱。
  14. Analysis on ecological water requirement in minqin county in downstream region of shiyang river

    石羊河流域下遊民勤縣生態需水量研究
  15. Water loss calculation of the hydropower plant bearing standby load and downstream wate demand

    承擔備用和下游綜合調控任務的水電廠空耗水量研究
  16. An experimental research on notching wet beach of the yellow river with the short - delay blasting is made for eliminating the risk that the main river channel is often threatened by some horizontal and slanting streams occurred on the downstream of the river and solving the problems from the bend cut - off for river channel harnessing, water way dredging and the siltation of the water diversion outlets along the channel

    摘要為了利用爆破解決黃河下遊河道經常出現的橫河和料河威脅河道安全的險情以及河道整治中的裁彎取直、疏浚航道和河道引水口淤積的問題，在黃河濕灘上進行了微差爆破開槽試驗研究。
  17. The following three alternatives are used to assess the impact caused by the projects, ( l ) the entrance of tunnel is at the downstream of the huanren dam and the main purpose of the huanren reservoir is to supply water for the project, ( 2 ) the entrance of tunnel is at the downstream of the huanren dam and the main purpose of the huanren reservoir is hydropower generation and ( 3 ) the entrance of tunnel is at the upper of the huanren dam

    本文擬研究該調水工程的水源工程?桓仁水庫的調度運行方式，使工程的正面效益較大，負面損失盡可能地小。桓仁水庫的調度方式有三個方案： （ 1 ）以供水為主的壩下取水方案； （ 2 ）以發電為主的壩下取水方案； （ 3 ）庫區取水方案。
  18. Application of acoustic measuring of concrete quality under water in downstream of yunfeng dam

    聲波測試在雲峰大壩水下混凝土質量檢測中的應用
  19. The design of the downstream water supply during the construction of yunlong reservoir is presented, in which the problem from the downstream water supply during the construction period of the flood discharge tunnel, the main dam, the initial impoundment of the reservoir and the locking - up of the diversion tunnel is solved satisfactorily with simple construction method, and then the water supply is guaranteed with better social and economic benefit

    摘要著重介紹雲龍水庫施工期下游供水設計，根據工程特點，較好地解決泄洪導流隧洞施工期、大壩施工期、水庫蓄水、導流隧洞封堵施工期等下游供水問題，施工方法簡單，確保了下游供水，取得了較好的社會和經濟效益。
  20. Raw sewage and fertilizer runoff has fouled the reservoir, nourishing giant algae blooms and threatening downstream water supplies

    未經處理的污水和化肥殘留物被不斷排入大壩水庫，導致巨型水藻生長泛濫，並威脅到下游的水供應。
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