铝硅合金

SSS 2011-12-20

material scientists admire spider silk for being lightweight and strong.now another arthropod product is getting into the act insect cuticle,the tough flexible material is inside insect skeleton.researchers at harvard * institute for biological inspi

发表于:2018-12-02 / 阅读(68) / 评论(0)

Scientific American(十二)月

公务员口语34

Exhibition and Recommendation Dialogue 1 -Hello,I am calling because I saw an ad. in the International Business Daily about your trade fair. -Yes.Let me give you some information about it.The trade fair will be in Shanghai from March 14 to 24. -Excu

发表于:2018-12-25 / 阅读(60) / 评论(0)

公务员口语

我国建时速400公里高铁助力'一带一路'互联互通

China is working on next-generation bullet trains with a maximum operational speed of 400 km per hour that will be ready by 2020 for markets linked to the Belt and Road Initiative, the country's top railway vehicle maker said. 国内最大的轨道客车

发表于:2019-01-07 / 阅读(184) / 评论(0)

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马虎词汇教程 list2-2

alienate v. 使疏远 allegory n. 寓言；讽喻 alleviate v. 使减轻 alliance n. 联盟，同盟 allocate v. 分配；定位置 alloy n./v. 合金，融合 allude v. 提及；暗指 allure v./n. 引诱

发表于:2019-01-11 / 阅读(101) / 评论(0)

英文语法词汇

美国航空航天局科学家测试新型飞机

美国航空航天局科学家测试新型飞机 The U.S Aeronautics and Space Administration, NASA, is commonly associated with space exploration, but aeronautics is still a big part of the agencys research. Engineers at its Aeronautics Research Cen

发表于:2019-01-26 / 阅读(117) / 评论(0)

英语新闻

Olympic Flame nears end of its 70 day journey round the Isles

LONDON, July 26 (Xinhua) -- It landed at Lands End on the extreme south-west coast of England 69 days ago and after making its way around the British Isles, the Olympic Torch finally reaches the Olympic stadium on Friday. When it reaches the end of i

发表于:2019-02-25 / 阅读(73) / 评论(0)

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