单词:hydraulic clamping mechanism
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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
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
AS IT IS 2016-03-07 Don't Come to Europe, EC Chief Tells Migrants Migrants should not travel to Europe, says European Council President Donald Tusk. I want to appeal to all potential illegal, economic migrants wherever you are from, Tusk said. Do not
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
Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水 WASHINGTON An often overlooked renewable energy resource is the power of ocean waves. Scientists in California say harnessing energy from the regu
Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Imagine a baby boy. Lets call him