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襄阳市第三人民医院是国有的吗襄阳第四医院治疗性功能障碍多少钱African athletes buy souvenirs in Beijing非洲运动员在京购买纪念品Tea sets and traditional ornaments might some be some things that are usually considered as things to take home when visiting Chinas capital.茶具、传统饰品通常会是来中国首都北京必须购买带回祖国的纪念品。Not for Guineas Mohamed Lamine Dansoko, and the Democratic Republic of Congos Rossene Mpingo, who had a much more mainstream souvenir in mind to have in their hand luggage on their trip home.而来自几内亚的穆罕默德·西索科和刚果民主共和国的罗塞内·马尼格却不走这样的寻常路线,他们有着想带回祖国更为主流的其他纪念品。 译文属201508/396399襄阳一医院流产怎么样 In many ways,plastic is the perfect material:we can make it strong and rigid enough to build spaceships and replace bones,or thin and flexible enough to makes shopping bags,that weigh as much as a nickel but carry up to 8 kilograms.在很多方面,塑料都是完美材料,塑料可以非常牢固坚硬,以制造航天飞船,替代骨骼,也可以很薄很坚韧,以制造购物袋,一块薄镍币厚度的塑料袋就能撑8公斤重量。And unlike other materials,plastic doesnt rust or rot,it can last for centuries,even when we only need it to last a few seconds.We make tons of plastic precisely because its cheap,durable and yet expendable.But the features of plastic that make it so useful to us have also transformed life in the oceans,where as much as 10% of our discarded plastic-millions of tons per year-ends up.但是和其他材料不同的是,塑料保和省锈蚀也不会腐烂,即便我们有时只需要几秒钟,塑料却能挺过好几个世纪。人们大量生产塑料因为它便宜又耐用,但是塑料依然属于消耗品。人们懂得利用塑料的特性,但也因为如此,塑料改变了海洋生物,每年全球10%的废弃塑料进入海洋。Big pieces of plastic are definitely bad news for marine animals like whales,albatross,and sea turtles which risk getting tangled in the debris or ingesting large pieces of it.Yet despite the publicity about huge garbage patches in the sea.most of the oceans plastic isnt big,our castaway shopping bags and soda bottles get weakened by sunlight.and torn apart in the wind and the waves into little bits of plastic confetti.对于鲸,信天翁和海龟等海洋生物来说,大块塑料当然不好,海洋生物可能被塑料缠住,或吞下大块塑料。虽然媒体中出现在海中的都是大块塑料,但是大多数海洋中的塑料并不大,购物袋和汽水瓶会在阳光下变薄 被海风和海浪撕扯成为小块碎渣。On the micro-scale,though,its still super durable the microorganisms that decompose ripped-up bits of wood and seaweed down into simpler organic compounds cant easily digest plastic.So while the plastic confetti gets broken into smaller pieces,it doesnt go away it just sps out over time.从微观角度看,塑料依然无法被微生物分解,分解木头和海藻的微生物无法轻易消化塑料。所以虽然塑料碎渣碎成更小颗粒,但并未消失 时间过去,塑料只是扩散开来。Which is why weve found;microplastics;pretty much everywhere in the oceans,from the Arctic to the Antarctic,and from the seafloor to the surface.Unlike the easy-to-observe impacts of large plastic trash.the effects of microplastics are as subtle and difficult to trace as the fragments themselves:the durable fragments can serve as new real estate,on which small ocean creatures can grow and multiply;or choke slightly larger ocean creatures that think the plastics are food;or attract and collect toxic chemicals,which become introduced into the food chain if the particles are eaten;and probably a million other problems we havent noticed yet.这就是为什么几乎全世界任何海洋中都发现了塑料微粒,从北极洲到南极洲,从海底到海面 和大块塑料垃圾不同,塑料微粒的影响不易观察,和微粒本身一样,其造成的影响微妙且很难追踪:耐性良好的碎片会成为生物新的栖息地,小型海洋生物在其上生长繁殖。稍稍大些的海洋生物会认为塑料是食物,如果吞下就造成阻塞。塑料也会吸附并积累有毒化学物质 如果微粒被动物吃下会进入食物链。也许还有更多问题,只是我们还未察觉到。Because weve only recently started paying attention to all these microplastics in the oceans.But its undeniable how much plastic trash weve introduced into marine ecosystems,and the wonderful durability of plastic guarantees itll be an issue for years to come.its possible we can decrease further impact by Switching to biodegradable plastics,dumping less plastic in the oceans,or cleaning up the patches of sea most strewn with plastic.因为我们也只是刚刚开始关注海洋中的塑料微粒问题。人类向海洋生态系统倾倒塑料垃圾数量之巨不容置疑,塑料惊人的耐性肯定会在未来的日子里成为一项难题,但是我们可以改用生物降解塑料减少以后塑料造成的影响,减少向海洋倾倒的塑料量,或是清理堆满塑料的海岸。But until we do,the question is,will the oceans be plastic enough to deal with our favorite material?不过在此之前,我们要问海洋是否能够适应我们最喜欢的塑料?201501/355414襄阳四医院做体检多少钱

襄阳市铁路医院男性专科栏目简介:;Shanghai Live; focuses on big events in the city and major issues around the world, and presents them in a practical and audience-friendly manner to meet the ever-evolving needs of Shanghais English-speaking viewers,both local and expatriate.《直播上海英语电台》集中报道城市大事件以及全球热点话题,并以观众喜闻乐见的方式呈现给大家,从而满足上海本地以及上海海外人士的英语需求。201507/385399中航工业三六四医院输卵管再通术多少钱 很多机器人都能飞--但是没有一个可以像一只真鸟儿那样真正飞翔。直到马库斯·菲舍尔(Markus Fischer)和他的团队在费斯托(Festo)成功造出智能鸟,这是一个大型,超轻,呈海鸥外形的机器人,如真鸟儿一样通过拍动翅膀飞行。看看它怎样在TEDGlobal2011大会上一飞冲天吧。201507/385559襄樊铁路医院无痛人流怎么样

襄樊无痛取环大概多少钱But the sun is much more than a giant lightbulb.但是太阳不只是个巨大的灯泡There are other forces at work in the sun.其内部还有其他的力量正在运作Forces that change over minutes and over years.这些力量可能在数分钟或数年内改变Forces that tear the surface apart.撕裂太阳表面We are only now beginning to understand these forces我们现在才开始了解这些力量and the effects they have on the Earth.及它们对地球的影响But we have known about them for hundreds of years.但我们早在几百年前,就知道它们的存在Because the sun gets spots.因为太阳上会出现黑点Sun spots are dark regions on the surface of the Sun,太阳黑子是出现在太阳表面的黑色区域typically about the size of the Earth in terms of area.一般来说,大小和地球差不多Heres a live shot of one today.这是今天拍到的即时影像Unfortunately weve got a very windy day with high thin clouds,可惜今天风很大,而且高空有稀薄的云层so the pictures bouncing around and not very sharp,所以画面晃得很厉害,画质也不清晰but with very high resolution images we can see但以高度来看,就能看到detailed structure in the sun spot.太阳黑子的仔细构造The inner part of the sun spot,太阳黑子的内部…the dark umbra as we call it is dark即所谓的暗影only in comparison to the rest of the sun.只是与太阳其他地方对比下,才显得黑暗Its actually bright enough that it would blind you其实暗影很亮,单独直视它的话if you looked at it alone.会瞎掉The spots are not static.太阳黑子并非静止不动These images show the edges of the spot crawling,我们拍到的画面显示,黑子的边缘almost as if it was alive.正在鲜活蠕动The movements of sunspots have been studied自从伽利略用望远镜观察太阳for four hundred years.对其行为有重大发现后Ever since Galileo trained his telescope on the sun人类就开始研究太阳黑子的活动and made the first crucial discovery about its behaviour.至今已四百多年Surprised to see black dots creeping over the surface伽利略惊讶地发现,太阳表面有移动的黑点he kept track of them over a number of days因此连续观察了好几天and found that they were all moving in the same direction.结果发现它们都朝着相同的方向移动To Galileo the meaning was clear对伽利略而言,其意义再清楚不过the sun was rotating太阳在旋转and was turning faster at the equator than at the poles.而且赤道旋风的速度比两极快It was a discovery that was to prove critical这项发现对我们in our understanding of how the sun works.了解太阳的作用机制至关重要Ever since Galileo records have been自伽利略之后kept of the coming and goings of sunspots人们便开始记录太阳黑子的出现与消失and variations soon became clear.其变异很快就呼之欲出Sometimes the sun is covered in hundreds of spots有时太阳表面出现数以百计的黑子other times there are none at all.有时连一个都没有201504/368530 栏目简介:《外国人在北京》是英语视频听力下面的子栏目,节目关注在北京生活的外国人的时尚新生活。话题紧紧围绕网络生活,每日的话题内容按照网络热门固定划分为家居、汽车、数码、饰美容、健身、交友、美食等,了解外国人生活的同时通过网络互动提供一个中外人士互相帮助的平台。201602/407647襄阳四院医院做人流费用大概多少襄阳保康人民医院人流专家

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