游標庫 的英文怎麼說

中文拼音 [yóubiāo]
游標庫 英文
cursor library
  • : Ⅰ動詞1 (人或動物在水裡行動) swim 2 (各處從容地行走; 閑逛) rove around; wander; travel; tour 3...
  • : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
  • 游標 : [機械工程] nonius; vernier
  1. Firstly, the status of our nation ' s water resources, flood and arid hazards is overviewed to illustrate the necessity for study on dynamic control of flood season limited water level. disadvantages in traditional limitsd water level design, static control of limited water level design, static control of limited water level and fuzzy limited water level curve are pointed out, and mending methods for these are introduced. dynamic control and its key problems are analyzed hi next section. the allowable range of limited water level is determined, so as the allowable extreme risk index. the definition of extreme risk is re - illustrated, risk analysis methods in reservoir operation is discussed either. according to the definition of extreme risk rate, the allowable extreme risk rate of reservoir is systematically demonstrated with variant extreme risk indexes and flood season limited water level

    本文首先闡述了我國水資源狀況和水旱災害、說明水汛期限制水位動態控制研究的必要性;介紹了傳統汛限水位設計、汛限水位靜態控制、模糊汛限水位過程線存在的問題及其初步改進方法;分析汛期限制水位動態控制的方法及關鍵問題;進一步闡述了水極限風險率的定義;根據極限風險率定義,詳細敘述了不同極限風險指時、不同汛期限制水位下起調,水所能承受的極限風險率計算方法。然後,基於極限風險率計算方法,以白石水為背景,研究「考慮壩體自身安全、考慮壩體安全與下防護對象控制下泄流量的汛限水位動態控制的極限風險率」 。
  2. Finally, taking the panjiakou reservoir in the haihe river basin in china as an example, the paper analysis the reasonable adjustment scheme of the limited level of the reservoir during the flood season according to the design flood, the flood forecasting, the flood control operation under forecasting, the flood control standard of upstream and downstream of the reservoir, the immigrants range, and the benefits and the risk of the reservoir in a long period of the operation simulation

    最後以海河流域潘家口水為分析實例,從設計洪水、預報預泄、洪水預報調度方式、上下防洪設計準、上移民淹沒及土地退賠線、水長期運行的風險和效益等多個方面分析論證了水汛限水位的合理調整方案。
  3. The application to qingjiang cascade hydropower plants shows that the proposed model can give the controlling rules for optimal dynamic flood storage and elevates the efficiency of reservoir system management and utilization of flood water

    該模型應用於清江流域梯級水,計算結果表明,在不降低水及梯級原有的防洪準前提下,能有效利用上水布埡水的防洪容,分擔隔河巖水部分防洪任務,並顯著提高梯級水發電量。
  4. This thesis concludes the flood control situation, engineering measures and the situation of optimal dispatch method. it studies flood control engineering system, which is composed of flood prevention reservoir, river course dyke and natural detention basin, and the relationship between various flood engineering measures according to the composition and characteristics of the flood control engineering of the middle - lower reaches of beijiang. it suggests the objective function based on the least flood loss and the optimal dispatch strategy structure of the middle - lower reaches of beijiang bound with the requirements of the flood gradual progress equation combined with hydrology and hydraulics

    本論文總結了我國防洪情勢、防洪工程措施及其優化調度方法研究的現狀;針對珠江流域北江中下防洪體系的組成及其防洪工程的特性,研究由防洪水、河道堤防和天然滯洪區共同組成的防洪工程體系中各防洪工程措施之間的關系;提出了以洪災損失最小為目函數、以水文學和水力學相結合的洪水演進方程等要求為約束條件的北江中下防洪體系優化調度策略框架。
  5. As the agricultural nfs is the most important factor for water environmental deterioration and lake eutrophication in china, more and more scientists and technologists focus on the control countermeasurc and pollution mechanism of agricultural non - point source ( nfs ). based on the investigation of natural resource and agricultural distribution, the loss rule of nitrogen and phosphorus in the typical land of qiandao lake watershed and distribution rule of the phytoplankton and physico - chemical characteristic in the lake were studied, and the input loading of nitrogen and phosphorus was also calculated by the annagnps model in this thesis. according to the routine monitoring data of the water environment in qiandao lake from 1989 to 2001, the concentrations of toxic substance and heavy metal were under the monitoring limit, but the total nitrogen ( tn ) and total phosphorus ( tp ) were much higher than the criterion for lake and reservoir

    本文調查了千島湖流域的自然資源和農業生產情況,研究了典型坡地降雨徑流中的氮、磷污染物的輸出規律,利用annagnps模型估算流域農業非點源污染物輸入負荷,並在千島湖內設點采樣,對水質理化指和浮植物群落進行系統的研究,得出以下結論: 1989 2001年間的水環境常規監測資料統計分析表明,有毒物質和重金屬濃度長期在監測下限內, no _ 2 - n 、 no _ 3 - n 、 nh _ 3 - n年平均濃度均符合類準,但湖泊水特定項目tn和tp濃度分別為超類和類,呈嚴重超狀況,湖區主要污染因子是將導致富營養化的物質tn和tp 。
  6. The paper selected changtan reservoir in guangdong province as case study site, investigated the impacts of 4 upstream reservoirs on changtan reservoir ' s design inflow floods and explored changtan reservoir ' s flood - protection standards, regulating rules and potential for integrated water resources utilization after newly - constructed upstream reservoirs being taken into account

    論文以廣東省長潭水為研究對象,闡述了受人類活動影響的水設計洪水調度研究方法,研究了水在其上修建了若干個中小水以後,其設計洪水調度所受的影響程度,分析比較了研究結果,探討了水在考慮上多個水影響下的防洪準、調度原則及水資源綜合利用特點。
  7. Use the odbc cursor library

    使用odbc游標庫
  8. Odbc cursor library

    Odbc游標庫
  9. A collation is specified by name in the windows control panel and in sql server 2000 during setup

    在當前系統中不常使用游標庫,而使用服務器
  10. The w3c xml schema part 2 : datatypes recommendation is the recommendation for defining data types used in xml schemas

    在當前系統中不常使用游標庫,而使用服務器
  11. Cursor types database engine

    類型(數據引擎)
  12. A query, or sql statement, that creates a new table, and then creates rows in the table by copying rows from an existing table

    基表( base table )數據中永久存儲的表。基表可由視圖、、 sql語句和存儲過程引用。
  13. The answers to that question are both simple and complex - suffice to say that http doesn t lend itself to intelligently keeping a scrollable cursor open on the database, and even if it did, a web application with high traffic can quickly consume a large number of open scrollable cursors

    問題的答案說簡單也簡單,說復雜也復雜我只想說, http不會智能地使數據上的可滾動一直處于開放狀態,即便如此,需要大量傳輸的web應用程序也會很快地消耗掉大量開放的可滾動
  14. Database application programming interface cursor functions

    數據應用程序編程介面( api )函數
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