比格水庫 的英文怎麼說
中文拼音 [bǐgéshuǐkù]
比格水庫
英文
bigge stausee-
This paper summarizes the current status and development of the method for flood regulating calculation of reservoir, reviews some current typical methods and takes case study as example based on computational efficiency
摘要綜述了水庫調洪演算方法研究進展，對近期典型的計算方法進行了評述與計算效率的實例比較研究；分析了直接試演算法的收斂過程，提出了直接試演算法的改進迭代格式。The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data
採用面元法預報大側斜螺旋槳水動力性能，螺旋槳表面及尾渦面離散為四邊形雙曲面元，每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言，槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元，這容易使槳葉表面速度的計算結果不正確，甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法，能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件The function of the software is useful, it has provided many functions such as the calculate of crop water requirement, pipeline layout ( automatic layout and manual operation ) and its optimization, pipe diameter optimization. investment budgetary estimate and economic beneficial result can be result. and can rapid create plan and do plan comparison, the software provides many kinds of result output such as graph. text, table and so on
該系統可以實行作物需水量計算，系統設計流量推算、管道水力計算、工程投資概算，經濟效益分析等功能，建立了常用的數據庫（管材、管件、水泵和電機等）並對其進行管理和維護，可以實現包括管道布置、管徑優化、管材選擇等多種參數選擇在內的多種方案比較、優選。系統能提供圖形、文本、表格等多種形式的成果輸出，人機交互界面友好，操作方便。Geopolitical concerns continued to pressure the market, but were outweighed by a host of downward factors such as high stock levels, a heavy maintenance schedule particularly in the usa and arbitrage opportunities for crude flows into asia
地緣政治風險造成的油價上漲壓力仍然存在，但已被一系列壓低價格的因素所壓倒，比如高水平庫存、美國保持高庫存的計劃、原油流入亞洲的套利機會。Two test sets were constructed by mapping the newly published 28, 469 full - length kome rice cdna to the rgp bac clone sequences of oryza sativa ssp. japonica : a single - gene set of 550 sequences and a multi - gene set of 62 sequences with 271 genes
我們把日本kome數據庫中的28469個全長cdna同國際水稻基因組計劃的粳稻bac序列對比，經過嚴格選擇構建了兩個測試數據集合： 550條單基因序列組成ossng550集合，包含271個基因的62條多基因序列組成osmtg62集合。分享友人