单词：scaled hydraulic model
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1. A transit strike in New York City forces millions of subway and bus riders to find new ways to get around at the height of the holiday shopping and tourist season. 2. In a huge courtroom fight over
美联社新闻一分钟2005
Oil spill, Day 42 of this oil spill in the Gulf of Mexico. Still there is no end in sight for this crisis. Right now take a look with me. Work under water and under way to place a custom built dome over that ruptured well. Remember that effort top ki
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Congressional investigators say three previously undisclosed defects in a critical safety device may have contributed to the massive oil spill in the Gulf of Mexico. The rig was owned by Transocean and leased by energy company BP. NPR's Peter Overby
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US Agency Announces Wave Energy Prize Competition 美国能源部发起能源奖竞争 Experts say that sun and wind are the richest sources of clean, renewable energy. But ocean waves also create powerful, clean energy. So, the U.S Department of Ene
2015年VOA慢速英语(五)月
Study: No Evidence Hydraulic Fracturing Pollutes Water A new study finds no evidence that the controversial practice to extract natural gas known as hydraulic fracturing is contaminating ground water. The report, Separating Fact from Fiction in Shale
VOA标准英语2012年(二月)
The fate of the world will soon be decided ___________1____________. There is a union now, between the Two Towers: Barad-dur, fortress of the dark lord Sauron, and Orthanc, stronghold of the wizard Saruman. ___________2____________ An unseen danger d
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