力系统工程

2001 年 1 月大学英语四级考试试题及参考答案 Part Ⅰ Listening Comprehension (20 minutes) ? Section A Directions : In this section, you will hear 10 short conversations. At the end of

发表于:2018-12-04 / 阅读(233) / 评论(0) 分类 大学四级英语考试听力真题

Broadcast: February 21, 2003 By George Grow This is the VOA Special English Environment Report. Everywhere, water use is increasing. Humans already use fifty-four percent of all the fresh water in riv

发表于:2018-12-07 / 阅读(157) / 评论(0) 分类 VOA2003(上)-社会广角

New Award Could Become Nobel for Engineering At Buckingham Palace, Queen Elizabeth presented her first ever Prize for Engineering, including one million British pounds, to Americans Robert Kahn and Vincent Cerf, and Frenchman Louis Pouzin for inventi

发表于:2018-12-08 / 阅读(165) / 评论(0) 分类 VOA标准英语2013年(六月)

Algae naturally produce oil, when its process start with oil turned into bio fuels, an alternative energy source. This is just one snag. Harvesting the oil from algae-float water is prohibitively expensive. But researchers have come up with an effort

发表于:2018-12-24 / 阅读(130) / 评论(0) 分类 Scientific American(一)月

I think the idea of genetic engineering is fascinating. Its also quite dangerous. Fiddling around with what makes us human might make us less human. We could end up creating a Frankensteins monster. The idea of genetic engineering has been around for

发表于:2018-12-26 / 阅读(163) / 评论(0) 分类 纯正英语一分钟

I think the idea of genetic engineering is fascinating. Its also quite dangerous. Fiddling around with what makes us human might make us less human. We could end up creating a Frankensteins monster. The idea of genetic engineering has been around for

发表于:2018-12-28 / 阅读(169) / 评论(0) 分类 听一分钟英文-G

When we announce that Bill Nye would be here to address you 我们宣布比尔奈要来演讲后 Boston Magazine called him the region's best commencement speaker 波士顿杂志将他称为区域最佳毕业典礼演讲嘉宾 And the Today Show high

发表于:2018-12-30 / 阅读(104) / 评论(0) 分类 公众人物毕业演讲

As the world warms up, 在地球日益暖化的今天 the sun may yet prove an unlikely source of cooling. 太阳也许能提供意想不到的冷却效果 The greenhouse effect could be stopped 我们可以藉由利用太阳的热力 by harnessing i

发表于:2019-01-02 / 阅读(194) / 评论(0) 分类 太阳科普

By Uma Ramiah Dakar 21 May 2008 A year-old project in Benin has shown that harnessing the power of sunlight could provide long-term solutions to hunger in underdeveloped nations. A six-month dry season in the Kalale District of Benin used to wreak ha

发表于:2019-01-13 / 阅读(148) / 评论(0) 分类 VOA标准英语2008年(五月)

New Lab to Test Energy-Saving Technologies 新实验室测试节能技术 Most of the electrical energy in the U.S. is consumed by buildings and the building sector has the fastest growing rate, but up to now the country did not have a facility for c

发表于:2019-01-14 / 阅读(151) / 评论(0) 分类 VOA标准英语2014年(七月)

互联网安全公司努力应对威胁 HOUSTON Bomb attacks typically grab news headlines. But there are almost invisible activities occurring every day that could create a more widespread and devastating calamity cyber intrusions into government an

发表于:2019-01-14 / 阅读(143) / 评论(0) 分类 VOA标准英语2015年(七月)

In its first ever National Building Competition, the U.S. Environmental Protection Agency challenged teams from across the nation to cut wasteful energy use in buildings in which they live and work. Residential and commercial buildings together consu

发表于:2019-01-17 / 阅读(124) / 评论(0) 分类 VOA双语新闻 2011年3月

84 利用基因技术提高粮食产量 DATE=8-14-01 TITLE=AGRICULTURE REPORT - Genetic Engineering Crop Debate BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(189) / 评论(0) 分类 科技之光

By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica

发表于:2019-02-03 / 阅读(209) / 评论(0) 分类 2007年VOA标准英语(五月)

Researchers in Sydney are leading a new international effort to make desalination more environmentally friendly. Current techniques tend to use excessive amounts of energy or are heavily reliant on chemicals. The University of Technology in Sydney is

发表于:2019-02-06 / 阅读(166) / 评论(0) 分类 英语新闻

The International Solar Decathlon has concluded in the US Capital of Washington, after 19 teams from 5 countries competed using their own unique designs. A team of university students from China were also there. Here's Wei Tong has more. China's Tong

发表于:2019-02-14 / 阅读(144) / 评论(0) 分类 世界各地新闻集锦

Business 商业报道 Air conditioning 空调行业 Cool innovation 很酷的发明 An upstart hopes to make rival cooling companies sweat 一家新贵公司有望使制冷方面的竞争对手汗流浃背 ON A hot July day in 1902, the world's first

发表于:2019-02-16 / 阅读(136) / 评论(0) 分类 经济学人商业系列

Hundreds of soldiers from the Chinese Navy, as well as students from the Naval University of Engineering in Wuhan city, Hubei province, are involved in the rescue mission for the Eastern Star ship, which sank in the Yangtze River Monday night. Navy d

发表于:2019-02-19 / 阅读(176) / 评论(0) 分类 cctv9英语新闻2015年

The Director of the State Council's Hong Kong and Macao Affairs Office, Wang Guangya, says that the central government will always support Hong Kong and Macao, and stick to the One Country, Two Systems principle. I can responsibly say that policy in

发表于:2019-02-25 / 阅读(173) / 评论(0) 分类 cctv9英语新闻2016年

Business. 商业 Air conditioning 空调行业 Cool innovation 很酷的发明(制冷方面的发明) An upstart hopes to make rival cooling companies sweat 这个挑战者渴望把与之竞争的空调公司逼出汗来 ON A hot July day in 1902

发表于:2019-02-26 / 阅读(193) / 评论(0) 分类 经济学人综合
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