查询词典 hydropower

China Water Conservancy and Hydropower 3rd Engineering BureauLanzhouGansu730010The intake tower is located in the traffic bridge on the left bank power station Gongboxia imports spillway tunnel, bridges with a rib plate for the T-beam, long 20m, bridge steel welded joints has become one of the difficulties of the installation: space narrow, steel-intensive, welding operation difficulties.

进水塔交通桥位于公伯峡电站左岸泄洪洞进口，桥梁为带有肋板的T型梁，长20m，桥梁钢筋接头的焊接成为安装的难点之一期刊文章分类查询，尽在期刊图书馆进水塔交通桥位于公伯峡电站左岸泄洪洞进口，桥梁为带有肋板的T型梁，长20m，桥梁钢筋接头的焊接成为安装的难点之一：空间狭窄、钢筋密集、焊接操作困难。

A series of experiments and numerical simulation of water flow in the Y type tube with circular cross section have been carried on to meet the request of the design for fork tube in the Yixing Hydropower Plant.

结合江苏宜兴抽水蓄能电站工程建设中钢岔管的设计要求，对分岔角为 6 4°的三岔管内水流的流动进行数值模拟与实验研究。

The main research activities of the Department cover the general layout of hydro projects, hydraulics of spillways for high dams, energy dissipation and river bed or bank erosions, flow induced vibration, cavitation and air entrainment, river ice, hydraulic transient flow simulation and control on hydropower project, pumped storage project and long distance water transfer project, optimization of thermal/nuclear power plant and other industrial cooling systems, investigation of the fundamental theory of stratified/mixing flow and its applications, studies on fluid mechanics and thermodynamics of large scale cooling towers, hydraulic field observations for existing projects, development of instrumentation for physical model tests and field observations.

研究领域主要为水利水电枢纽总体布置、高坝泄洪建筑物水力学、消能防冲、流激振动、空化与空蚀、崩岸水力学与岸坡保护、河冰问题、水电站引水系统中的水力瞬变及调压井水力学研究、跨流域调水工程中的规划及水力控制数值仿真、冷却水的工程水力热力问题研究、环境水力学、火电厂水工模型试验与数值模拟研究、火电厂取排水局部泥沙冲淤试验、模型和原体监测仪器的研制和开发、以及过水现场原体监测。

The device can meet the uniformity requirement in the aspects such as heat engineering hydropower and structure, etc. proposed by steam generators and heat exchangers, reduce the heat stress on an outlet pipe plate, and improve the efficiency of the steam generator. The application is wide and the cost is low.

可以满足蒸汽发生器或换热器在热工水力、结构等方面提出的均匀性要求，减小了出口管板处的热应力，提高了蒸汽发生器的效率；应用广泛，成本低。

Product series: Hydropower station/oil field series needle valve, changes the delivering necessary valve group, the ripple base pin valve, the oil field special-purpose needle valve, the oil field sample uses the needle valve, UN needle model valve and so on.

产品系列：电站仪表系列阀门，变送器配套阀组，波纹管针型阀，油田专用针型阀，油田取样用针型阀，美标针型号阀等。

And the effect of water pressure on concrete crack width is mainly studied; concrete crack width of penstocks in Three Gorges Hydropower Station is predicted in the end.

并重点研究了水头的变化对压力管道混凝土最大裂缝宽度的影响，最后对三峡电站压力管道混凝土结构裂缝进行了预测。

Application of these techniques to the Three Gorges hydropower station provides sufficient reference for the stipulation of design code of steel-lined reinforced concrete penstocks.

另外，三峡水电站工程实践也为我国制定水电站钢衬钢筋混凝土压力管道设计规范提供了充分、翔实的依据。

Aiming at the uncertainty problem of crack character and location of concrete outside the penstocks,the cracking area of concrete outside the penstocks of the Three Gorges Hydropower Station under designed load is obtained by using nonlinear 3D-FEM.

针对三峡压力管道外包混凝土裂缝性状和位置的不确定性问题，通过对三峡压力管道的三维非线性有限元分析，得出了在设计荷载作用下三峡压力管道外包混凝土开裂区域位置，并给出了管道混凝土可能的最大裂缝宽度值。

Aiming at the uncertainty problem of crack character and location of concrete outside the pen-stocks, the cracking area of concrete outside the penstocks of the Three Gorges Hydropower Station under designed load is obtained by using nonlinear 3D-FEM. And the likely maximum width of crack of penstock concrete is also worked out.

针对三峡压力管道外包混凝土裂缝性状和位置的不确定性问题，通过对三峡压力管道的三维非线性有限元分析，得出了在设计荷载作用下三峡压力管道外包混凝土开裂区域位置，并给出了管道混凝土可能的最大裂缝宽度值。

A survey of the Dahe Bay vegetation in Jin-ping cascade hydropower station setting along the river stream in Sichuan province, China, was performed. A total of 132 plant species and 4 environmental factors in 50 sample quadrats were recorded. Assemblages of Jin-ping Dahe Bay were classified using two-way indicator species analysis, ordinating by detrended correspondence analysis. Seven vegetation assemblages were divided by TWINSPAN classification, in which Pouzolzia elegans shrub grassland was the dominant community in this area.

以锦屏梯级水电站大河湾段植被为研究对象，以河流流向为基础布置样方，将50个样方物种重要值及其环境因子进行TWINSPAN数量分类和DCA排序，结果显示：（1）由TWINSPAN数量分类将植被划分为7种类型，雅致雾水葛灌草群落为该区域的主要群落。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。