查询词典 tailrace

A very complicated underground cavern system located in the thin mountain body on the left bank of the Xiaoliangdi Project is composed of a number of underground structures, including 3 orifice tunnels, 3 sediment tunnels, 3 free surface flow tunnels, 6 headrace tunnels, 3 tailrace tunnels, underground powerhouse, transformer chamber, draft tube gate chamber and also many tunnels for grouting, drainage, access and other uses.

小浪底工程左岸单薄分水岭山体的地质条件复杂，地层为砂岩夹有薄层泥岩，主要断层有F28、F461、F236、F238和F240。在左岸山体中布置有3条孔板洞、3条排沙洞、3条明流洞、6条引水洞、3条尾水洞、地下厂房、主变室、尾闸室以及为数众多的灌浆洞、排水洞、施工洞等，形成非常复杂的地下洞室群系统。水库蓄水后左岸山体出现了远大于原先估计的渗流量。

The comparison with the conventional surge tank for a hydropower station with long tailrace tunnel shows that the damping type surge tank with air hole possesses the advantage of higher minimum water level in surge tank with little variation of negative pressure at the outlet of spiral case.

以西南地区带有尾水调压室的某大型水电站为例进行制气式和常规开敞式两种调压室方案的比较计算，计算结果表明，采用制气式调压室可使蜗壳出口最低负压并没有显著变化的同时提高调压室的最低水位，从而减小工程量，节约投资。

In this paper, the analytical expressions of seismic input for homogeneous elastic half-space are first derived in oblique incidence of plane SV-wave, and then a finite element model for a real hydropower cavern group composed of main powerhouse- transformer chamber- tailrace surge tank cavern is created. Characteristics of seismic responses such as displacement, acceleration and stress are studied in detail at different incidence angles and some results are compared with those given by the literature.

本文首先推导了平面SV波斜入射下均质弹性半无限空间的地震动输入表达式，然后建立了某水电站主厂房室-主变室-尾水调压室等构成的地下洞室群有限元模型，详细研究了不同入射角度下各洞室的位移、加速度、动应力等地震反应特点，并与文献进行了对比。

According to these, transient simulations of several water and hydraulic engineerings with Press-Regulation facility has been studied. Such as Air-Cushioned Surge Chamber , Inclined Ceiling Tailrace, Siphonic Pump Station. And then some reference conclusions are offered.

因此论文主要通过数值模拟对带有变顶高尾水隧洞、气垫式调压室、虹吸断流等调压设施的水利水电工程过渡过程进行了深入的研究，并对带有调压室的复杂管系水轮机调节系统建立了状态方程，得出了对工程设计及动态仿真研究很有参考价值的结论。

It shows that the design of tailrace tunnel with sloping ceiling is suitable and provides a hard foundation for the project design.

第五章：综合介绍了其他几家科研单位的研究结果，总结向家坝电站变顶高尾水洞的成果。

Chapter 3 introduces the research contents and the results of the model test about the Xiangjiaba tailrace tunnel with sloping ceiling.

本章根据物理模型的试验条件和试验工况进行相应的数值计算，即在数值计算中，输入的管道、机组特性等参数均为模型试验实测数据，程序根据模型比尺输出原型的计算结果信息，并与原型化后的模型试验数据分析比较。

By getting over the state of the art about the technique of the tailrace tunnel with sloping ceiling, the research contents and study ways and means are put forward, and the importance to research is explained.

第二章：主要论述了变顶高尾水洞的工作原理、体型设计和适用条件以及过渡过程计算的数值计算模型，重点在于数学模型的建立与分析，明满流交替现象中选择了合理的计算模型和计算方法；第三章：着重介绍了向家坝变顶高尾水洞方案模型试验的研究内容和主要结果。

The fundamental of tailrace tunnel with sloping ceiling is expounded and the design procedure for the configurations suggested.The applicable range and several problems of this kind of tunnel are investigated.

在阐明水电站变顶高尾水洞工作原理的基础上，从工程实际出发，提出了体型设计的基本思路和具体步骤，并着重探讨了这种新型尾水道的适用范围和设计与研究中应重视的问题。

According to the characteristic of Xiangjiaba Underground Hydropower Station at the right bank of Jinsha River, one alternative option that the tailrace tunnel with sloping ceiling is adopted has been studied comprehensively, by method of model test and numerical calculation.

本文针对向家坝右岸地下电站的特点，采用模型试验和数值模拟方法对变顶高尾水洞方案进行了较为系统的研究，为工程设计和施工组织提供了参考依据。

With the swift development of the hydroelectric project in our country, a set of large or extraordinary hydropower stations are being designed or constructed, such as the Three Gorges hydropower station, Longtan hydropower station, Xiangjiaba hydropower station, Xiaowan hydropower station, Pengshui hydropower station etc. All these hydropower stations adopt underground workshop, and have long diversion pipe system, and have one or two surge-chambers or adopt tailrace tunnel with sloping ceiling.

随着我国水电事业的迅速发展，一批大型、特大型水电站正在设计或处于待建之中，如三峡水电站、龙滩水电站、溪洛渡水电站、向家坝水电站、小湾水电站、乌江彭水水电站等，这些电站多采用地下厂房，具有较长的引水发电系统，并且设有调压室或采用变顶高尾水洞。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。