单词：navy avionics development laboratory (nadl)
单词：navy avionics development laboratory (nadl) 相关文章
US Navy Lab Turns Seawater Into Fuel 美国海军实验室成功将海水转变成燃料 For centuries, alchemists have tried to turn lead into gold. That transmutation has long been proven impossible, but another similar dream - turning water into f
VOA标准英语2014年(五月)
hwThe little black boxes in the aeroplanes provide useful information after a crash has taken place. Now researchers have devised a way to use black box info from planes that do not crash to prevent accidents from never happening. Some airlines alrea
Scientific American(九)月
The little black boxes in airplanes provide useful information after a crash has taken place. Now researchers have devised a way to use black box info from planes that do not crash to help prevent accidents from ever happening. Some airlines already
Scientific American(九)月
DEVELOPMENT REPORT - Gates Foundation Gives $750 Million to Vaccines Alliance; $43 Million Goes to Malaria Drug Project By Jill Moss Broadcast: Monday, February 07, 2005 I'm Gwen Outen with the VOA Sp
农业与发展
Scientists Study Genetic Basis of Autism Scientists have taken another big step toward identifying the genetic flaws which may cause autism, a type of neurological development disorder. In the latest development, laboratory mice have been genetically
VOA标准英语2011年(十月)
By Zulima Palacio Branson, Missouri 04 September 2006 watch Branson profile The small middle-American town of Branson, Missouri is becoming a popular tourist destination. It has fewer than 8,000 residents -- but attracts seven million visitors each
2006年VOA标准英语（九月）