白菜炒豆腐皮
描写三峡大坝英语作文（通用5篇）
描写三峡大坝英语 篇1
The environmental impact of the Three Gorges Project pros and consthe ecological balance in the regulation of the advantages outweigh the disadvantages.The Group noted that the Three Gorges Project Demonstration:beneficial effects mainly in the middleincluding reducing flood damage to the ecological environmentreduce coal pollution of the environmentreduce siltation of Dongting Lake and so on.Adver effects mainly in the rervoir areain addition to farmland inundatedchanging landscapes and large number of immigrantsthe Shang Duizhen rare speciesTail floodslandslidearthquakesand so on terrestrial plants and animals have a certain influence.
描写三峡大坝英语作文 篇2
The Three Gorges are situated ① in the middle reaches of the Yangtze Riverand are famous throughout the world.
The Three Gorges are:the Xiling Gorge(西陵峡)Wu Gorge(巫峡)and Qutang Gorge(瞿塘峡).Along with them there are a number of beautiful places of interestsuch asZhaojun VillageQu Yuan Temple and Baidi Town.
The Gezhouba Dam is at the entrance to the Gorges.A big power station has been built here.Since the reform and open policies began to be carried outgreat changes have taken place and the Three Gorges of the Yangtze River have taken on a new look.At prent a large multipurpo water conrvancy project ② is under construction.
电脑键盘指法The Three Gorges will benefit ③ the people more and make greater contributions to China.
十二星座顺序描写三峡大坝英语作文 篇3
最美的星空
The three gorges dam is located in China's hunan provincethe whole project is expected to completion in 20__.The flood control and power generation function with the dam.The Yangtze river in the same period a year is always flooding.Destroyed crops and homev
en claimed many lives.Becau the surface of the lakethe dam will ri by more than 100 metersand need immigrants millionsthe three gorges region of the many places of interest will be submerged.
描写三峡大坝英语作文 篇4
As with many dams there is a debate over costs and benefits. Although there are economic benefits such as flood control clean hydroelectricity and navigation there are also concerns about the relocation of people siltation loss of archaeological and cultural sites and the impact on regional ecosystem
While the country benefits from gargantuan potential of electricity generation we have to face up to various environmental conrvation issues concerning geological and ecological environment along both river sides and whole upper reaches. The professional designers of the great dam now have to work out a practical way to prevent and remedy pollution effectively which has already been the focus of world attention.
描写三峡大坝英语作文 篇5
红烧鸡脚大家好!欢迎您到三峡大坝参观游览!下面我将通过介绍，使大家对工程有一个较为全面的了解。
我们现在所看到的是三峡工程的1：1250的微缩模型，它反映的是20xx年三峡工程全面竣工之后的坝区景观。先让我们来确认一下我们目前所处的方位吧!刚才各位途径享有“公路博物馆”之美誉的三峡工程专用公路、坝区主干道江峡大道后，经过了永久船闸，然后盘山而上来到了三峡坝区15.28平方公里征地范围内的海拔制高点—坛子岭。坛子岭因其山体形状酷似四川人做泡菜的坛子倒扣在山顶上而得名，海拔262.48米，只要大家登上坛子岭的顶部观景台，便可俯瞰三峡坝区的施工全貌，饱览西陵峡黄牛岩的秀丽风光和秭归新县城的远景。因此，坛子岭作一个永久性的观景台，随时欢迎您的到来。
模型上的蓝色水流代表长江，长江的左岸右岸是如何区分的呢?顺水而立，您的右手方向为右岸，即通常所说的江南，相对地，各位刚才来的这一边为长江的左岸，即为江北，背对的是长江的下游宜昌方向。
宏伟的长江三峡工程主体建筑物由横跨长江的拦河大坝、位于其中段的泄洪坝段、左右岸发电厂房及通航建筑物组成。它的建设方岸是：一级开发、一次建成、分期蓄水、连续移
民。
实习报告个人总结拦河大坝以185平台为左岸起点，延伸到长江南岸的白岩尖，轴线全长约为2309米，属于混凝土重力坝(用混凝土浇筑的依靠坝体的自重来对抗库区的水压和其它荷载作用不同于另一种坝—拱坝)。大坝建成之后，坝顶会形成一条沟通江南与江北的公路，宽度为15米，大坝底部宽度为124米，如果您从侧面看这个大坝剖面，它呈现为直角梯形，大坝的海拔高程与185平台等高，为海拔185米。这样，万里长江就将在西陵峡中段被拦腰截断，从三峡大坝直至上游重庆市六百多公里的水路就将形成一个天然的河道型水库，水库容量为393亿立方米，正常水库水位是海拔175米，洪水来临之前，将水位降低至海拔145米，这样防洪库容量达到221.5亿立方米。
中段的泄洪坝段长483米，22个溢流表孔(宽为8米，堰顶高程156米，主要作用是泄洪)与23个溢流深孔(7米×9米，孔底高程为90米，主要作用是冲沙。)主要承担渲泄洪水和清除泥沙的任务，泄洪的设计最大流量是11.6万立方米/秒，相当于千年一遇的洪水流量，因为历史上长江上最大的洪水发生于1870年，当时的最大水流量为10.8万立方米/秒。黄陵庙的木柱上就留下了当时的水迹，这为我们的三峡工程的设计提供了珍贵的水文质料。相信1998
年的洪水给大家留下了深刻的印象，荆江大堤全面告急、牌洲湾决口、九江新区被淹，直接经济损失高达1600亿，这次洪水的最大流量是6.8万立方米/秒。所以在大坝竣工之后，荆江河段的防洪标准将大大提高。
位于泄洪坝段两边的是左右两个坝后式厂房，模型上的圆孔代表我们将来要安装的水电机组的台数，我们将在左岸发电厂房安装14台水电机组，右岸发电厂房安装12台水电机组，每台机组的单机容量为70万千瓦。相当于一个丹江口水电站的发电量。这样大容量的发电机组目前在全世界仅有21台，其中目前居世界第一位的巴西和巴拉圭合建的伊泰普水电站拥有18台，目前居世界第三位的美国大古力水电站拥有3台，而将来三峡水电站将拥有26台水电机组(每台机组重达600吨超过埃菲尔铁塔)，总装机容量达1820万千瓦，年发电量847依度，相当于葛洲坝水电站年发电量的6.5倍，相当于广东大亚湾核电站年发电量的10倍，于当今世界最大的伊泰普水电站相比，其三峡大坝为中心，可以输送到1200平方公里左右，最东—上海;最西—兰州;最南—广州;最北—天津，源源不断地输向华中、华东和四川东部地区，促进这些地区的水电开发和经济腾飞，实现“西电东送”的战略格局。水能是清洁的可再生能源，不会消耗自然资源和造成环境污染。三峡工程每年可以节约四千万吨至五千万吨的原煤，减少火力发电，减轻环境污染，从而优化中国的能源结构。
