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嘉兴中药祛雀斑哪家医院好快乐活动

2019年08月21日 16:03:38|来源:国际在线|编辑:妙手爱问
Scientists are struggling to understand why a burst of “scary” warming at the North Pole has pushed Arctic temperatures nearly 20C higher than normal for this time of year.科学家们感到费解,北极突然出现的“可怕”变暖为何会导致北极气温较同期水平高出近20摄氏度。Experts in the US and Europe say they have been shocked by the soaring temperatures recorded in November, when much of the region is plunged into freezing winter darkness.美国和欧洲的专家表示,今年11月录得的不断飙升的气温让他们感到震惊,这个时候北极地区很多地方进入冰冷的极夜。Temperatures this month have been as high as almost minus 5C when they are normally closer to minus 25C.北极本月气温最高曾逼近零下5摄氏度,而通常在零下25摄氏度左右。“We’ve been processing this data since 1958 and we haven’t really seen anything like this at this time of year,” said Rasmus Tonboe, a sea ice expert at the Danish Meteorological Institute. “We are watching the situation and trying to analyse what is going on but it’s very surprising.”“我们从1958年开始处理这些数据,我们确实没有在一年中的这个时候看到过这么高的气温,”丹麦气象研究所(Danish Meteorological Institute)的海冰专家拉斯穆斯.汤波(Rasmus Tonboe)表示,“我们正在关注这一情况,试图分析其中的原因,但这非常奇怪。”The unusual warmth has come as officials at the UN’s World Meteorological Organization said they were 95 per cent sure that 2016 would be the hottest year since records began in the 19th century. It would mean that 16 of the 17 warmest years on record have been this century.在北极出现不同寻常的变暖之际,联合国世界气象组织(World Meteorological Organisation)的官员称,他们有95%的把握相信,2016年将是自19世纪有记录以来最热的一年。这将意味着,在有记录以来的17个最热年份中,有16个出现在本世纪。 /201611/479840China is building a factory so big that when it#39;s done, it will be able to accommodate the construction of four submarines at once-out of sight from military enthusiasts and spy satellites alike.中国正在建造的这个工厂是如此之大,一旦完成,可以同时建造四艘潜艇——军迷和间谍卫星都看不到。According to Popular Science, Bohai Shipbuilding Heavy Industrial Corporation is building the plant in Huludao, Liaoning Province. The place will have two parallel assembly lines. The gigantic hall reportedly is where China will begin construction on is latest attack submarine, the Type 095.根据大众科学网站报道,渤海造船重工集团正在辽宁葫芦岛建造这个工厂。该工厂将有两条平行的组装线。据报道中国将在这里建造其最新型的攻击潜艇095型。Despite having control over its Internet and press, the Chinese government has had enduring problems with military enthusiasts sneaking pictures of new ships and aircraft under development or construction. While some of this is useful to telegraph China#39;s broader intentions and give a hint of its capabilities, the rest of it is considered a nuisance. Building an indoor submarine factory keeps sensitive subjects such as the hull shape of a submarine or even the propeller design a secret.尽管控制着网络和媒体,中国政府依然无法阻止军迷偷拍建造中的新舰艇和飞机。虽然其中有些可以用来宣传中国更广泛的意图和宣示自己的实力,但是其余的那些则被认为是令人讨厌的泄密行为。所以建造一个室内的工厂就可以保守秘密,比如潜艇的外壳形状或者螺旋桨的设计样式。This does not necessarily mean China now has a submarine-building edge over the U.S. The U.S. Navy commissions about two submarines a year, each of which takes about three years to build. That puts U.S. submarine construction at about six at a time, ahead of this factory#39;s four. Of course, China builds submarines at other locations too, and may even build them a little faster.这并不意味着现在中国在潜艇制造上对美国有优势。美国海军每年大约役两艘新潜艇,每艘三年时间制造。也就是说美国一次建造6艘潜艇,领先于中国这个工厂的4艘。当然,中国也在其他地点建造潜艇,而且建造的速度可能会更快点。Speed isn#39;t everything. Even if China ends up capable of building more submarines per year than the ed States can, there#39;s the question of quality. The Type 095 is expected to be quieter that the second tranche of Los Angeles-class attack submarines that were built in the late 1980s, and Russian Victor III or Akula-class submarines built in the early 1980s.但速度并非一切。即使中国每年的潜艇建造量多于美国,质量上不一定好。这款095潜艇预计比80年代末期建造的第二批洛杉矶级攻击潜艇以及80年代初期建造的俄罗斯阿库拉级潜艇更安静。In other words, China is approximately 30 years behind the ed States in submarine quieting technology. Chinese submarines in the 1980s were about as quiet as American submarines from the 1950s, while modern American submarines such as the Seawolf orVirginia-class boats are so quiet they#39;re described as ;quieter at 25 knots than the Los Angeles class at pierside.; This is not a field where China has been able to close the gap.换言之,中国在潜艇静音技术上几乎落后美国30年。80年代中国潜艇和50年代美国潜艇一样安静,而现代美国潜艇比如海狼和佛吉尼亚非常之安静,被形容为“25节速度航行时都比在码头区的洛杉矶级潜艇安静。”在这一领域中国还无法缩小差距。 /201705/508446

Online banking customers around the world should be on the lookout for scam emails that allow hackers to steal your passwords - and your money.世界各地的网上客户们都得小心了!黑客可以用诈骗电子邮件盗取你的密码——以及你的钱!Phishing emails which claim to be from reputable financial organisations contain hidden software - designed to exploit a newly discovered flaw in Microsoft Word.这些钓鱼电子邮件会声称来自信誉良好的金融机构,但是却隐藏有软件--这种软件利用的是微软Word新发现的一个漏洞。Documents opened with the word processing software may trick users into downloading code that allows cyber criminals to infect their computer and capture banking logins.这种Word文档会欺骗用户下载代码,而网络罪犯可以利用这些代码感染用户的电脑,从而获得登录信息。Cyber security firm Proofpoint warned that the exploit was being used to sp the trojan software - called Dridex.网络安全公司Proofpoint日前警告称,该漏洞被用来传播一种被称为“Dridex”的木马软件。Dridex has previously been used to steal online banking passwords globally, resulting in the theft of hundreds of millions of dollars worldwide.Dridex曾经就被用于在全球盗窃网上密码,造成全世界范围内数亿美元失窃。During an outbreak of the virus in 2015, the US was most heavily affected according to computer security firm Symantec.据电脑安全公司赛门铁克表示,在2015年该病毒肆虐期间,美国受灾最严重。This was followed by Japan and Germany, with significant numbers of infections also seen in the UK, Canada, Australia, and a number of other European countries.其次是日本和德国,而英国、加拿大、澳大利亚和多个欧洲国家感染者也为数众多。The latest email campaign started in Australia, but experts are warning this could quickly sp to the rest of the world.而此次通过电子邮件传播病毒的事件起于澳大利亚,但是专家警告称,很可能很快就会蔓延到世界其他地区。The exploit targets a previously undiscovered flaw - known in security circles as a #39;zero-day#39; vulnerability - in the software.该漏洞针对的是Word之前一个未发现的缺陷——在安全界被称为“零日”。This allows hackers to insert malicious code into the body of a document - in this case fake RTF files (Rich Text Format) which are actually disguised HTML code.黑客可以利用该漏洞,将恶意代码插入到一个文档中——这样一来,RTF格式的文件实际上是变相的HTML代码。 /201704/504487

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