查询词典 shutter dam

Thermal stress is important in whole dam stress distribution; especially the thermal stress in whole pouring block or long block is the main factor of inducing slit and even endangering dam safety. It is influence arch dam particularly.

温度应力在整个拱坝的应力分布中起重要作用，尤其是整体浇筑或长块浇筑的混凝土坝内的温度应力，是产生裂缝乃至危及坝体安全的主要因素，对拱坝的影响尤为严重。

Trough the analysis of stabilization safety on Tengzigou arch dam, some conclusions are obtained in the following:(1) Tengzigou arch dam is safe under normal poll level ;(2) stabilization safety factor of Tengzigou arch dam is about 4-5;(3) It is proved that combinatorial reinforcement measures are effective and feasible.

对藤子沟拱坝的数值计算和模型试验分析表明：(1)藤子沟水电站在正常蓄水位作用下，坝体和两岸坝肩是稳定的；(2)藤子沟拱坝的整体安全度大概为4～5左右；(3)东北院提出的对左岸泥岩层挖除处理并用混凝土置换的加固除险措施经研究表明该加固措施是有效、可行的。

Safety evaluation of high arch dam is related to the failure mode. It is necessary to find the most possible failure mode for the specified arch dam according to risk analysis. Then the safety degree of the dam relevant to the mode will be analyzed.

高拱坝安全度的评估需要与失效破坏模式联系起来，应通过风险分析寻找最可能失效模式，确定与此模式相应的安全度。

In concrete face rock-fill dam, especially when the dam is high, creeping of the dam body can be critical.

面板堆石坝尤其是高面板堆石坝的运行实践表明，堆石的流变现象比较显著。

Secondly, to analyze seismic response of the concrete gravity dam, subspace iterative method was applied to compute free vibration period of the dam, time integration method was builtup for the seismic time history analysis and formulation of coupled vibration of reservoir water and dam were also deduced.

其次，针对混凝土重力坝的地震响应分析问题，采用子空间迭代法计算了大坝的自振周期，建立了地震时程分析的逐步积分方法，并且推导了库水和坝体耦合振动的理论公式。

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。

"Hoover Dam: formerly Boulder Dam, Highest concrete arch dam in the U.S., built on the Colorado River at the Arizona-Nevada border ."

胡佛水坝：旧称顽石坝，美国最高的混凝土拱坝；建于亚利桑那－内华达州边界的科罗拉多河上。

The effects of the 3 gorges dam are not that much different from other dams in other parts of the world - Snowy mountain dam in Australia and Hoover dam in America.

三峡大坝带来的影响与世界上其他一些大坝工程没有什么不同，比如说澳大利亚的雪山大坝和美国的胡佛大坝。

The company's main product is fousing on wood shutter,wood and bamboo curtain,bamboo shutter and so on,which is exported to European,Middle East,Southeast Asia,Korea and Japan at present,and also sold to more than 20 provinces in the country.

公司主要产品有：竹帘、木帘、实木百叶、竹百叶等系列，目前出口欧洲、中东、东南亚、韩国、日本等国家，国内销售网络遍布全国二十多个省市和地区。

A measurement method of effective exposure time on curtain shutter is raised,which is based on analysis and calculation of effective exposure time on aerial camera shutter.

为评测卷帘式航摄快门曝光时间的均匀性，根据有效曝光时间的分析计算，提出了一种可变缝宽式快门有效曝光时间均匀性的测试方法。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。