单词：composite shell-slab and I-beam bridge
单词：composite shell-slab and I-beam bridge 相关文章
By Gary Garriott Broadcast: September 8, 2003 This is Robert Covent with the VOA Special English Development Report. Bridges are an important part of transportation systems. They make it possible to t
VOA2003（下）-发展与科学
[00:01.40]Thank God you didn't. 谢天谢地你没去 [00:02.20]-Oh, my God. -Thank God you didn't. -哦，上帝 -谢天谢地你没去 [00:04.20]Thank God I didn't and you didn't. If one of us had showed up alone... 谢天谢地你没去我也没去
听电影学英语-日落之前
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Airplane manufacturers have been changing over from aluminum to advanced composite materials. These lighter, stronger composites are made of fibers of
Scientific American(三)月
托德和詹安娜在讨论学校生活 Todd: Hello! Jeanna: Hello! Todd: Hi, what's your name? Jeanna: Jeanna. Todd: OK, Jeanna, how old are you? Jeanna: I'm 15 years old. Todd: 15! OK, are you in high school? Jeanna: Yes, I am. Todd: OK. What do yo
英语口语练习册
Its the material at the tip of a pencil and it has the potential to revolutionize our lives. A study from Columbia University has shown that graphene is the strongest material in the world. In fact , it is much tougher than diamonds and 300 times str
轻松英文阅读
beam, [bi:m] n 大梁（建筑中用作支撑的木材、金属或石头）；光柱；臀围；平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,
不择手段背单词
Todd: Hello! Jeanna: Hello! Todd: Hi, what's your name? Jeanna: Jeanna. Todd: OK, Jeanna, how old are you? Jeanna: I'm 15 years old. Todd: 15! OK, are you in high school? Jeanna: Yes, I am. Todd: OK. What do you think about high school? Jeanna: It's
英语访谈对话
[00:00.00]change one's mind anyhow argument misunderstanding [00:05.09]改变注意 ad.不管怎样 n.辩论 n.误会，误解 [00:10.19]ashamed Cincinnati counter disappointment [00:14.72]a.惭愧,害臊 n.辛辛那提(美国城市) n.柜台 n.失望；
高中英语词汇
Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma
英美文化
Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如，美国开拓西部的过程给美国语言增添了不少色彩。可
美国习惯用语
America is so big. It has 50 states. Some states are bigger than other countries. Texas is the biggest state in America. Texas itself is bigger than France. People sometimes consider states as countries because they are so different. Even cities can
英语第5级听力-English Level 5
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
英语新闻
The world this week 一周要闻 Business 商业 The prospect of an all-out trade war between America and China became real. 美国和中国之间爆发全面贸易战的可能性变成了现实。 Donald Trump said he would impose tariffs on $50bn o
经济学人要闻
Todd: Hello! Jeanna: Hello! Todd: Hi, what's your name? Jeanna: Jeanna. Todd: OK, Jeanna, how old are you? Jeanna: I'm 15 years old. Todd: 15! OK, are you in high school? Jeanna: Yes, I am. Todd: OK. What do you think about high school? Jeanna: It's
原版英语对话1000个
BEIJING, Aug. 19 (Xinhua) -- China's steel output growth slowed in July and prices of steel products have continued to drop, according to data from the National Development and Reform Commission (NDRC). Crude steel production gained 4.2 percent year
英语新闻
Chinese shares posted their biggest one-day fall in a month yesterday, with indices closing more than 6 per cent lower after a late sell-off. 中国股市昨天出现一个月来最大单日跌幅，在尾盘抛售之后，沪深股指收跌逾6%。
英语新闻
Chinese stocks carved out their biggest gain in two months amid speculation that A-shares could be included in MSCIs global benchmarks. 由于市场猜测A股可能会被纳入MSCI明晟的全球基准，中国股市今日出现两个月来最大幅度
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Wall Street ended slighter higher on Wednesday after fears eased that the Federal Reserve would strongly signal plans for a June interest rate hike. The Dow Jones industrial average rose about 0.3 percent. The SP 500 gained 0.16 percent. The Nasdaq C
cctv9英语新闻2016年