现代交通运输和工业生产对城市大气造成的污染更为严重。因此人们对大气污染问题越来越关切。
造成大气污染的物质有:一氧化炭CO、二氧化硫SO2、一氧化氮NO、臭氧O3以及烟尘、盐粒、花粉、细菌、苞子等。
距地面几十米的近地面层大气,是人类和生物的生存空间。这一层空气质量的好坏直接影响着人类的生产和生活。近年来,由于交通运输业的发展,排放出的大量汽车尾气与
空气中的一些物质成分发生化学反应,生成对人体十分有害的一氧化氮、臭氧 、乙醛等新物质。
悬浮在大气中的各种气溶胶粒子,按其大小可分为降尘和飘尘。其中降尘的粒子较大,直径大于10微米,它的自然沉降率较快。它与人类支气管炎的死亡率和农业减产有很大
关系;飘尘粒子较小,直径一般在0·1—1·0微米。其自然沉降率很小,故悬浮在大气中的生命史较长。随着粒子的减小有毒元素的浓度将增加。通常小于0·3微米的飘尘能直接
吸入肺泡,如长期积累,会损害呼吸机能,引起哮喘、 肺气肿、 矽肺和肺癌等不治之症。由于飘尘的污染期长和毒性强,因此它的危害性大。当大气中气溶胶粒子增加到一定程
度以后,就会出现烟雾弥漫,能见度降低,太阳辐射减弱等现象。
关于空气污染及治理的英语作文及翻译120个单词左右
Protecting the environment is everyone's dut y. How should we do? I think we should do th e follwings. Firstly, we should drive less, walk more, and often ride bikes. Secondly,we shoul d have low-carbon lifestyle,so as to reduce th e pollution of the atmosphere, slow the deteri oration of the ecological environment. We can use energy saving lamps, reduce the time of s hower,save water,and turn off the lights when leaveing the room. We can recycle paper,book s,and leave the books to the students in the lo wer grades for using.
空气污染英语作文70字左右附加中文翻译
空气污染 Air PollutionIn the past few decades, our Earth has changed a lot, but to the bad direction. Among these changes, the air pollutions resulting from a huge number of automobiles and coal-burning is almost the severest. The severe air pollution alarms humans of the heavy load we have exerted on Earth by our insatiable production and usage of automobiles. However, with the deepening of urbanization, more cars are needed, which will make the air pollution worse. Therefore, the following actions should be taken. First, we should apply the most cutting-edge technologies in order to adopt new forms of energy as substitutes for fossil fuels. Second, try hard to develop possible transportation means, which are enviromental friendly. So that the citizens can reduce the dependence on cars. In short, our humans should take responsibilities for the air pollution and have to find ways to solve this problem.在过去的几十年中,我们的地球发生了很大变化,但是是往坏的方向。
在这些变化中,大量汽车和煤燃烧产生的空气污染是最为严重的。
严重的空气污染警告人类,我们无休止的的生产和使用汽车给我们的地球带来了沉重的负荷。
然而,随着城市化的加深,汽车的需求量也越大,这会导致空气污染更严重。
因此,我们应该采取以下行动。
首先,我们应该运用最尖端的技术,以新型能源作为化石燃料的替代品。
其次,努力寻找可能的环境友好型交通方式。
这样城市居民就可以减少对汽车的依赖。
简而言之,人类应该承担空气污染的责任,寻找解决这一问题的方法。
(120字左右)用英语介绍造成空气污染的成因带翻译
Air pollution is one of the major problems of the modern world. A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too. Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution. Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities. They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material. Also, engineers try to design and locate new power plants to do minimum damage to the environment. However, it may be that we still have a long way to go before we have a "clean" world. Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do. People will continually find new ways to control pollution.翻译:空气污染是当今世界几大主要问题之一。
现代工厂的运作需要极大的能源。
汽车,火车,飞机和公交车也需要能源。
几乎所有的能量都是由燃料的燃烧产生。
燃烧的过程中产生废物,其中有些就残留在空气中,引起了空气污染。
后面的就不翻译了,额。
楼主看看吧,好就给分吧。
这里再给你一篇:AIR POLLUTION Sandstorms and the dust and gases from volcanoes pollute the earth's atmosphere naturally. But the most serious kind of air pollution comes from people. Factories, power stations, and rehicles exhausts[1] pump harmful gases into the air, contributing to global warming, causing acid rain[2], and destroying the ozone layer. On a much smaller scale, air pollution causes all sorts of breathing problems. There are no simple solutions to air pollution, but people could reduce air pollution by saving energy and reducing harmful emissions from vehicle exhausts and power stations. When a volcano erupts, dust is blasted[3] high above the troposphere and may take weeks to be carried around the weather zone, so cannot be washed out of the air by rain. It will eventually fall to the earth after a few years. Air pollution is at its worst over big cities where millions of people live, work, and travel about in cars, buses, and trucks. Factory chimmeys can be fitted with devices to cut down[4] air pollution, but this is expensive. If better pubic transport and cycle lanes were available in towns and cities, people would be less likely to use their cars, reducing the overall amount of pollution. Smoking cigarettes adds to the general levels of air pollution as well as damaging our health. Cigarette smoke contains chemicals that can cause cancer, a gas which stops oxygen being taken into the blood and a substance called nicotine, which raises blood pressure and makes the heart beat faster. No-smoking areas cut down on this pollution and save non-smokers breathing in other people's cigarette smoke.空气污染 沙暴和火山爆发喷出的尘埃和有毒气体自然而然地对地球大气造成的污染,然而最严重的空气污染却来自人类。
工厂、火力发电站和车辆将有害废气排放到空气中,是造成全球气候变暖,出现酸雨,破坏臭氧层的罪魁祸首。
就更小的范围来看,空气污染会引发各种呼吸道疾病。
没有解决空气污染的简单办法,但人们可以通过节约能源、减少车辆和火力发电站的有害气体排放来达到降低污染的目的。
火山爆发时,尘埃被高高喷射入对流层以上的空间,需要几个星期才飘浮移至气象层,因而雨水无法将其从大气中冲走。
几年之后,尘埃将最终漂落在地球上。
好几百万人在城市里工作、生活,还以轿车、公共汽车和卡车为交通工具,因而这种百万人口的城市空气污染最为严重。
工厂烟囱可以安装滤清装置以减少空气污染,但成本昂贵。
如能改善城镇公共交通,并设置自行车车道,人们就不再会热衷于使用自家汽车,从而达到全面减少污染的目的。
吸烟不仅对健康有害,而且增加空气污染程度。
香烟雾含有多种有害物质:不仅有致癌化学物质、有某种能阻止氧气进入血液的气体,还有引起血压增高、心速加快的被称为尼古丁的物质。
设立禁烟区有助于减少污染,并能使不吸烟者免受被动吸烟之害。
关于保护环境的英语作文,要翻译成中文。
【含有空气污染、淡水污...
The earth scale change of climate has brought a new kind of natural disaster and the developed and complicated city system is holding a latent risk of expanding the damage artificially. Also people has been spoiling the health since the immense quantity of chemicals have been produced and already used in pursuit of convenience and various toxic substances have been produced unintentionally and accumulated in environment. Therefore, We need some countermeasures from the viewpoint to prevent the city environment form disaster and to manage environmental risks. So we will develop and improve a new risk management system and a disaster prevention system to preserve and create the city environment where people feel easy and sound in their life.地球规模变化的气候带来了一种新的自然灾害,在发达和复杂的城市系统持有人为地扩大损坏的潜在危险。
此外人已被糟蹋健康因为印制了化学品的巨大数量并已为方便使用和无意印制了各种有毒物质,并已累积的环境。
因此,我们需要一些视角,防止城市环境窗体灾害和环境风险管理的对策。
所以我们将发展和改善新的风险管理体系和防灾系统维护和创建城市环境让人感到轻松和声音在他们的生活。
空气污染指数检验报告寻求中译英翻译。
温室效应、酸雨、和臭氧层破坏就是由大气污染衍生出的环境效应。
空气污染的主要类型是 碳氧化物:一氧化碳(CO)及二氧化碳 (CO2); 硫氧化物:二氧⑵ 化硫(SO2),三氧化硫(SO3); 氮氧化物:一氧化二氮⑶(N2O),一氧化氮(NO),二氧化氮 (NO2); 碳氢化合物(有机化合物,由不同的碳和氢所综合组成); 大气的主要污染源和污染物 大气污染源就是大气污染物的来源,主要有以下三个: (1)工业:工业是大气污染的一个重要来源。
工业排放到大气中的污染物种类繁多,性质复杂,有烟尘、硫的氧化物、氮的氧化物、有机化合物、卤化物、碳化合物等。
其中有的是烟尘,有的是气体。
(2)生活炉灶与采暖锅炉:城市中大量民用生活炉灶和采暖锅炉需要消耗大量煤炭,煤炭在燃烧过程中要释放大量的灰尘、二氧化硫、二氧化碳、一氧化碳等有害物质污染大气。
特别是在冬季采暖时,往往使污染地区烟雾弥漫,呛得人咳嗽,这也是一种不容忽视的污染源。
(3)交通运输:汽车、火车、飞机、轮船是当代的主要运输工具,它们烧煤或石油产生的废气也是重要的污染物。
特别是城市中的汽车,量大而集中,排放的污染物能直接侵袭人的呼吸器官,对城市的空气污染很严重,成为大城市空气的主要污染源之一。
汽车排放的废气主要有一氧化碳、二氧化硫、氮氧化物和碳氢化合物等,前三种物质危害性很大。
...
中考满分英语作文20篇带翻译
As the saying goes, “A friend in need is a friend indeed”. Friends play a very essential role in our daily life. However, how to make goods friends is a problem for most of us. As for me, I have three principles to choose friends.正如谚语所说的那样,患难见真情。
朋友在我们日常生活中扮演着非常重要的角色。
然而,如何交到一个好朋友是我们大多数人都遇到过的问题。
In the first place, good friends should have their own principles. We should take into account the fact that people who insist on their principles have high quality. Therefore, it is worth making friends with them.首先,好朋友应该是有他们自己的处事原则。
我们应该认识到这样一个事实,坚持自己原则的人一般都是具有高尚的品格。
因此,这样的人值得我们去交朋友。
Then, I want to point out that good friends should be full of trust. This kind of person has a pure heart, so we can communicate with each other by heart.然后,我想说的是,好的朋友应该是充满真诚的。
这样的朋友有一颗赤子之心,我们能用心来彼此交流。
Finally, active friends are just like beautiful sunshine. They can light up our blue mood, drive away the dark clouds and give us courage.最后,拥有积极心态的朋友就像美丽的阳光。
他们能够照亮我们忧郁的心情,驱走乌云,给我们鼓励。
Friends who have above three characteristics will be great wealth for us.能交到有以上三个特征的朋友将会是我们巨大的财富。
Ladies and gentlemen,女士们和先生们, I feel it a great honor to have a chance to give a speech here, talking about the haze weather, which causes lots of bad effects on our health and life. We breathe polluted air, making us suffer from lung and liver diseases. Besides, because of it, the flights have to be canceled. All kind of transports may run into each other, resulting in much damages and lots of injuries.我很荣幸能有机会在这里做演讲,和大家谈谈这给我们健康和生活带来不好影响的灰霾天气。
我们呼吸这被污染过的空气,让我们遭受肺、肝疾病。
另外,由于这天气,航班被迫取消。
各种交通工具相撞在一起,造成很大的毁灭和伤害。
As far as I am concerned, it is high time that we did something. As individuals, we should ride the underground or buses instead of cars to reduce carbon dioxide. As government, more measures should be taken by carrying out the related law on pollution.我觉得是时候我们该做些什么了。
我们应该乘坐地铁或公共汽车而不是汽车来减少二氧化碳。
政府应该实施更多针对污染的相关法律的。
In summary, we're all looking forward to breathe fresh
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