水力的

Companies rely on advanced quality management system, strong technology development strength - in constant demand by customers for the purpose of focus, the commitment to the development of China's vacuum valve creatively continuously reliable performance, beautiful appearance of the products, have in hand , gas, electric butterfly valve, valve, damper valve, electromagnetic valve differential pressure, electromagnetic valve, ball valve, valve plates, etc. more than 10 series vacuum valves, as well as various specifications and models of high school low-pressure valve and hydraulic control valves.

公司依靠先进的质量管理体系，雄厚的技术开发力量—在不断地以顾客需求为关注焦点的宗旨下，致力于我国真空阀门的发展，创造性地不断推出性能可靠，外形美观的产品，有手，气、电动的蝶阀、隔膜阀、挡板阀、电磁压差阀、电磁截止阀、球阀、插板阀等10多个系列真空阀门，以及各种规格和型号的高中低压阀门和水力控制阀门。

The study shows that in the radial direction the dynamic forces acting on the particle balance on the particle itself; there is not a so-called trajectory of the particle in which the composition of forces acting on the particles is zero, but there is a trajectory of the particle in which the radial slip velocity of particle is zero, the tra...

通过对固体颗粒的运动和受力分析发现固体颗粒在沉降过程中径向合力几乎处处为零，不存在所谓的径向合力为零的一个平衡轨迹面，但存在着一个径向沉降速度为零的轨迹面，这一轨迹面就是平衡轨迹面法所要寻找的；首次推导出了该轨迹面半径与固体颗粒直径、水力旋流器自身几何参数以及操作参数之间的定量表达式。

According to the statistic, there are more than 541 MKW could be used to make electric power, and just 10% has been opened out. With the opening up of waterpower, most generators must to be produced and implemented in time. It brings both good opportunity and tremendous challenge to the company that produce dynamotor.

水力资源的开发离不开水力发电设备，我国大力发展水力发电的政策给水电设备制造业带来了良好的机遇和严峻的挑战，天津阿尔斯通水电设备有限公司是目前国内的第三大水电设备供应商，是由世界五百强企业法国阿尔斯通集团公司与天津发电设备厂合资形成的新厂，在我国的水电建设中充当着主力。

According to the basic equations derived under the two assumptions by Harold Lauffer—(1) the energy head of every point of a vertical section remains constant,(2) the flow lines are concentric circular arcs,this paper qives a comprehensive deduction of curvature effect in the characteristics of free overflow of round-crested spillway.118 runs of experiments of three round-crested spillway models of different size have been conducted by the author.

本文根据劳弗尔氏在两项假定[(1)垂直测线上各点所含能量为常数，(2)流线呈同心圆弧]下所导得的基本公式，作了详细的补充引伸，得出圆顶壩自由溢流时各项水力特性中的曲率影响计算公式。作者曾进行了大、中、小三个圆顶壩模型的试验共118组，试验成果基本上和导得的计算公式相合致。文中并根据试验资料制定了一些经验公式，应用时可更简便。

It founds natural heightening theory for warping dams and puts forward specific way of diversion, measures for preventing dam eroded and design for energy dissipation and flood storage of cofferdams and sedimentation and dewatering through exploration and study on deposition in front of natural formed dam and the techniques of building dam through hydraulic filling....

通过对天然聚湫坝体前的淤积和&水力冲填&筑坝技术的探索和研究，创立了淤地坝坝体自然加高的理论，并提出了具体的导流方式、坝体防冲措施及围堰消能蓄洪、留淤脱水设计。建议尽快立项开展坝体自然加高现场试验和模拟试验。

But flooded coal mines, silted-up hydroelectric power stations and plunging oil imports mean it is increasingly difficult to keep powering the few luminous pinpricks visible from space.

煤矿被洪水淹没，水力发电厂淤塞，进口的油料大幅减少，这意味着朝鲜要保持从太空中看到的不多的小亮点的那些地方的电力正在变得更加困难。

According to environmental protection, the vacuum system of post polymerisation of imported nylon66 industrial yarn was modified.

由于环保要求，对原进口的尼龙66工业原丝后聚合器抽真空系统进行了改造，用水力喷射抽真空系统代替了原先的由燃煤锅炉生产的蒸汽喷射抽真空，并实现了对真空度的精确控制。

The theories proposed by Wilson (1994) were adopted to describe the fundamental behaviors of temperature and variation of suction of soil. The Darcy's law and Pick's law described the flows and evaporation of water respectively. Some proposed assumptions including the characteristic curve of volumetric water content and hydraulic conductivity were only related to the suction of unsaturated soil. The coefficient of latent heat for water was a linear function of temperature; and the heat conductivity was calculated according to the equation proposed by De Vries.

对于土体的温度和吸力变化特征，采用Wilson提出的理论加以描述，在此理论中，分别利用Darcy和Fick定律描述水和蒸汽的流动规律，土水特征曲线和水力传导系数假定仅仅相关于非饱和土吸力，水的潜热系数是温度的线性函数，温度传导系数采用De Vries建议方程加以计算。

Based on the mechanism of the occurrence of debris flow and the volume of rainfall in the basin, a systematic study on the occurring of debris flow in Jiangjia Gully was done and a suggestion that the hydrological condition for forming debris flow is the unit discharge of the flood ≥ 0.35m2/s.m was gotten.

研究从泥石流发生的机理入手，对泥石流的形成作了系统的研究，提出蒋家沟形成泥石流的水力条件是洪水单宽流量≥

Although Mr Kleist has confident plans to develop tourism, as well as hydropower plants to take advantage of meltwater running off the Greenlandic ice cap, the locals today rely on Danish dole worth some $11,000 per person per year.

尽管Kleis t先生有确实的计划来发展旅游业，以及利用格陵兰冰盖下流动的冰水建水力发电站，格陵兰本地人现在还要依靠丹麦发放的每人每年1.1万美元的救济来生活

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。