查询词典 hydro-geology

This paper analyze and study the influence of the superimposition in depth based on the previous achievements and combined with the theoretical qualitative analysis and project instances. The main contents as follow:Chapter 1: Indicate the significance and objective of this paper, review the previous achievements of the transient process and superimposition, and then present the study purpose of this paper.Chapter 2: combined with the physic knowledge of the fluctuation and the superimposition, Indicate the physical essences and the influence of the superimposition phenomena that exist in the diversion pipe system, and take one hydraulic turbine owning only one diversion tunnel and two hydraulic turbines sharing one tailrace conduit for instance to study out the numerical calculation superimpose operations.Chapter 3: From the calculation theory of the parameter of the guaranty calculation of regulation of the hydro-turbine, qualitative analyze the influence of the superimposition on them and the superpose time, combined with some project instances, get the numerical value of the influence of the superimposition and the superpose time.Chapter 4: Based on the previous achievements of the calculation and theoretical analysis of the surge-chamber ground swell, analyze the influence of the superimposition on it and the superpose time.

本文在前人研究成果的基础上，结合理论定性分析及工程实例，对波动叠加带来的影响进行深入分析研究，其主要内容如下：第1章，指出本文研究的意义和目的，回顾前人对水电站过渡过程及波动叠加方面的有关研究成果，在此基础上提出本文的研究内容；第2章，结合物理学中有关振动与波动叠加方面的有关知识，阐述水电站引水发电系统中存在的波动现象的实质及其影响，并以两机一洞和一机一洞具有上游调压室或下游调压室的水电站拟定其数值计算叠加工况；第3章，从机组调保参数的理论出发，定性的分析波动叠加对机组调保参数的不利影响及叠加时间，结合几个工程实例，得到波动叠加带来的影响大小及叠加时间；第4章，在前人对调压室涌浪进行计算和理论分析的基础上，分析波动叠加对调压室涌浪的影响及其叠加时间。

Hydro-electric gyrator, discharge gate, sub-feeders, such as over a hundred kinds of products are widely used in mining, electricity, coal, metallurgy, transportation, chemical industry, water conservancy and other industries.

电液动回转器、卸料闸门、分料器等百余种系列产品广泛应用于矿山、电力、煤矿、冶金、交通、化工、水利等行业。

This thesis builds "635"hydro-junction project headrace model without cracks and model with cracks in finite element software ANSYS.

本文在有限元软件ANSYS 中，建立"635"水利枢纽工程导流洞无缝状态下的模型和带缝状态下的模型。

It is an economic and energy saving way that the hot wind of hydro generator is used to power plant heating .

发电机放热风用于电厂厂房采暖是一种经济节能的方法。

I think we should do the same and spend more money on building hydro-electric power stations.

我认为我们也应该这样做，投资更多的金钱用于建造水电站。

When I was in Scotland last year, I visited a special hydro-electric power station.

去年我在苏格兰的时候，我参观了一个水电站。

The world's hydro-electric power is still in its early stages.

世界上水力发电还处于起步阶段。

A few months more and the hydro-electric ''.

再过几个月，水电站就能供电了。

To-the-art performance at home and abroad to provide water and electricity saving, environmental protection and efficient hydro-electric power equipment.

以一流的业绩为国内外水电用户提供节能、环保、高效的水力发电设备。

New factories and hydro-electric stations of small and medium sizes are being built everywhere in our country.

请旅客在此填写报关表。3、全国到处都在兴建新的工厂和中小型水电站。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新