单词：non-fissile material
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Thanks to social media a Milwaukee, Wisconsin woman was able to get her St. Bernard puppy back . Mica Chenault parked her car in front of a Home Depot store to run some errands. She locked the doors and cracked the windows open for her puppy and went
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By Lisa Schlein Geneva 18 May 2006 The United States has presented a draft treaty aimed at cutting off production of fissile material, the plutonium and uranium used in making nuclear weapons. A U.S.
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By Dan Robinson Washington 25 July 2006 Legislation required to allow the U.S.-India agreement on civilian nuclear cooperation to go forward comes up for consideration Wednesday in the House of Representatives. House lawmakers have included strong l
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Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre
VOA标准英语2014年(二月)
Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h
VOA标准英语2014年(七月)