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   water region 在 水利水电工程 分类中 的翻译结果: 查询用时:0.575秒
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water region
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  水域
    Under some specified boundary conditions such as finite water region and top loading, effects from several influencing factors,for example, the degree of immersion h/H of the elastic cylinder, the relative density P/P0 of cylinder to water,the cylinder slender ratio R/H, as well as the relative distance D/d, on the frequency ratio <a/a>a are discussed, in which CD and co0 denote the frequency with water and without water respectively.
    在有限水域和顶部具有集中荷载如塔室的情况下,讨论弹性柱杆在水中的浸没度h/H,柱杆的密度与水体密度之比ρ/ρ_0,柱杆细长比R/H诸因素对有水频率与无水频率之比的影响。 给出分析的解析解式,编制了程序,用来计算频率比与诸因素的变化关系。
短句来源
    Extensive field obervations of the water region near the plant were conducted and both mathematicaland physical modelling of the hafted effluent circulation in the hey were Performed.
    为了研究冷却水在此潮汐水域中的运动特性,预报电厂取水水温,并为了验证数模、物模结果的可靠程度,先后进行了数值模拟计算、物理模型试验和大规模的原体现场观测。
短句来源
    It would be practically potential value if the ship can stay within a stable water region or in a good position of moorage.
    在浪小流缓 ,流态稳定的水域或有好的停泊位置的大江上 ,有其应用的价值。
短句来源
    Structure model and mathematics model for determining rational surface water region ratio,hydrodynamic model for river net and economy model for scheme choice,are set up.
    建立了确定合理水面率的结构模型和数学模型、河网水域水动力学模型、方案优选的经济模型,明确了其求解方法。
短句来源
  水区
    Studies on the effect of non-linear wave loading in shallow water region on dynamic response of sandy seabed
    浅水区波浪非线性效应对砂质海床动力响应的影响
短句来源
    Analysis on Wetness-Dryness Encountering of Runoff Flow between Water Source Region and Receiving Water Region in the Middle Route of the South-to-North Water Transfer Project
    南水北调中线水源区与受水区丰枯遭遇分析
短句来源
    In this study, numerical analyses for solving the generalized Biot's dynamic consolidation equations by virtue of finite element method are performed on dynamic response of sandy seabed subjected to non-linear wave loading in the shallow water region. The seabed is modeled as poro-elastic media and the non-linear wave loading is represented by second-order Stokes'wave theory and first-order cnoidal-wave theory.
    以广义Biot动力固结理论为基础,运用一阶椭圆余弦波和二阶Stokes波等非线性波浪理论考虑浅水区波浪荷载的非线性效应,在时域上采用有限元方法对非线性波浪力作用下饱和砂质海床的动力响应进行了数值求解,并与线性波浪作用下海床动力响应特性进行了对比分析。
短句来源
    The natural runoff flow data is adopted to calculate the frequency of wetness-dryness encountering between water source region and receiving water region in the middle route of the south-to-north water transfer project,in the meantime,those among water source region,receiving water region and Yellow River are computed.
    采用历年天然径流量对南水北调中线工程的水源区与受水区进行丰枯遭遇分析的同时,对水源区、受水区和黄河也作了丰枯遭遇分析.
短句来源
  “water region”译为未确定词的双语例句
    Evolution Research of Tongluoxia River Reach in Changing Back Water Region of TGP Reservoir
    三峡水库变动回水区铜锣峡河段演变研究
短句来源
    Research on the Rational Surface Water Region Ratio for Transfer Flooding and Drainage
    行洪除涝的合理水面率研究
短句来源
    3D flow structures of the related water region were carefully observed and analyzed.
    1.取水口口门水流结构及水力特性
短句来源
    Due to the rise of water level after building the Gezhouba Reservoir, the navigable channels in the area of rapids of creek mouth-bar within the reach of varied back water region are improved, taking up 50% of all 12 rapids.
    但是占总数50%的位于库尾段的溪口滩与变动回水段洪水急流滩溪口滩,未能得到改善。
短句来源
    Rain and water region of the storm flood happened in July, 1996 in Hulan river drainage area is introduced.
    简述1996年7月呼兰河流域暴雨洪水的雨情和水情
短句来源
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  water region
The stations were located in the slope water region covered by the upper warm water from the Gulf Stream.
      
When such water is driven into the slope water region, it is cooled by mixing or heat transfer to the atmosphere, but retains its high salinity and sinks.
      
In FISH, soil and water region cells were hybridized with DAPI (4', 6-diamidino-2-phenylindole) and specific fluorescently labelled probes.
      
These maps present apparent spatial variations of selected parameters and inform the decision makers of water quality variations in a large water region in the Istanbul metropolitan area.
      
For example, the relative frequency of Stephanodiscus alpinus varied between 4% and 43% within the surface sediment samples of the open-water region of Dudinghausener See.
      
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Based on the vibration problems of the intake tower in reservoir and the bridge pier in river, natural frequencies of hydro-elastic vibrations of upright cylinders are studied. Under some specified boundary conditions such as finite water region and top loading, effects from several influencing factors,for example, the degree of immersion h/H of the elastic cylinder, the relative density P/P0 of cylinder to water,the cylinder slender ratio R/H, as well as the relative distance D/d, on the frequency...

Based on the vibration problems of the intake tower in reservoir and the bridge pier in river, natural frequencies of hydro-elastic vibrations of upright cylinders are studied. Under some specified boundary conditions such as finite water region and top loading, effects from several influencing factors,for example, the degree of immersion h/H of the elastic cylinder, the relative density P/P0 of cylinder to water,the cylinder slender ratio R/H, as well as the relative distance D/d, on the frequency ratio a are discussed, in which CD and co0 denote the frequency with water and without water respectively.

本文由水库中塔体和河道中桥墩等建筑物的振动问题出发,取断面为圆形等截面,对水弹性自由振动的基本频率进行了研究。在有限水域和顶部具有集中荷载如塔室的情况下,讨论弹性柱杆在水中的浸没度h/H,柱杆的密度与水体密度之比ρ/ρ_0,柱杆细长比R/H诸因素对有水频率与无水频率之比的影响。给出分析的解析解式,编制了程序,用来计算频率比与诸因素的变化关系。求得边界邻近程度D/d对频率比发生影响的下限。此外还在相应条件下做了与上述参量有关的水弹性振动试验,所得结果与计算结果极为接近。

The paper presents the experimental results of a systematic study on the effects of various physical quantities on the mass and heat transfer at air-water interface of heated water body. Emphasis is put on the effect of water-air temperature difference. On the basis of numerous experimental data and practical experience obtained from intensive evaporation investigations of different type of water region in China, equations are recommended for the evaluation of evaporation and heat loss coefficients. The...

The paper presents the experimental results of a systematic study on the effects of various physical quantities on the mass and heat transfer at air-water interface of heated water body. Emphasis is put on the effect of water-air temperature difference. On the basis of numerous experimental data and practical experience obtained from intensive evaporation investigations of different type of water region in China, equations are recommended for the evaluation of evaporation and heat loss coefficients. The equations, simple in form, not only reflect more closely the real picture of mass transfer at air-water interface, but take care of the mechanism of free and forced convection in a single expression, in harmony both in form and function.

本文是我国全国范围大规模水面蒸发及水面散热问题研究的一项成果。主要提出在气象可控专用风洞中进行的系统试验研究的结果。文中分析了气温、水面风速、水温及水气温差各个因子对水面蒸发的相关影响。特别注意了前人不曾系统研究过的水气温差对蒸发的驱送效应。 试验证明,在试验范围内,水气温差能增进水面散热的驱动能力。根据大量水槽试验资料并结合全国各地有代表性水域的现场实测经验,提出了充分考虑温差效应的水面蒸发系数公式(10)及水面综合散热系数公式(18)。公式统一了自由、强迫对流的散热机理和天然水体与受热水体的水面蒸发规律,获得了比较完整的理论上描述。可以证明,施成熙公式及国际上比较通用的Ryan-Harleman公式可认为是本文推荐公式的特例。 由于温差对水面蒸发系数的影响,还引起水面综合散热系数的增项。在一定条件下,此增项可高达20%,不容忽视。

The peper presents a case study which gives comparison of results obtained from physical modelling, numericalsimulation and field observations.Liaodong Bay is ugh as heat receiving water boy with large amount of waste thermal energy effluented from a 1,400MW power plant. Extensive field obervations of the water region near the plant were conducted and both mathematicaland physical modelling of the hafted effluent circulation in the hey were Performed. In numerical simulstion, the method Offractional step...

The peper presents a case study which gives comparison of results obtained from physical modelling, numericalsimulation and field observations.Liaodong Bay is ugh as heat receiving water boy with large amount of waste thermal energy effluented from a 1,400MW power plant. Extensive field obervations of the water region near the plant were conducted and both mathematicaland physical modelling of the hafted effluent circulation in the hey were Performed. In numerical simulstion, the method Offractional step with L -stability was apPlied with due consideration of the local topographic characteristics in bollndarytreatment. A model test with scales of L. = 300 and Z. = 60 was thed Operated in conformity with the boundary conditionsgiven by field tests. The very good agreement shown by the comparisons indicates the adaptability of distorted model with evenrather high geometric distortion ratio provided the model is carefully designed and well calibrated.

本文为潮流水域中电厂冷却水运动模型试验、数值计算与原体实测资料的对比分析。某电厂装机容量1400MW,利用辽东湾作为电厂冷却水的受纳水体。为了研究冷却水在此潮汐水域中的运动特性,预报电厂取水水温,并为了验证数模、物模结果的可靠程度,先后进行了数值模拟计算、物理模型试验和大规模的原体现场观测。数值模拟采用具有L稳定的分布杂交法,在边界条件中充分考虑了局部地形特点,做了特殊处理;物理模型取用比尺Lγ,=300,Zγ=600,直接采用原体实测资料作为边界控制条件。进行了物模-数模、数模-原体三者资料间的对比,获得了满意的相互验证。文中简述了所用数模、物模的某些特点,着重提出了验证分析成果。通过此典型的工程研究实例,可以认为,若能妥善处理边界条件,正确选择相似准则,虽在复杂地形的不稳定水域,数模、物模仍能相当确切地重演冷却水运动的原体情况和预报工程的水力、热力效果。

 
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