单词：four-accelerations
单词：four-accelerations 相关文章
By Al Pessin Pentagon 31 October 2006 U.S. Defense Secretary Donald Rumsfeld says senior American generals in Iraq and the Iraqi government are proposing an increase in the target number for Iraqi security forces, but he would not say how much the i
2006年VOA标准英语（十月）
New Device Detects Pilot Blackouts WASHINGTON During certain maneuvers, jet fighter pilots sometimes experience loss of vision and even loss of consciousness. Although short, these so-called blackouts can have tragic consequences. An Israeli company
VOA标准英语2015年(六月)
新装置或能降低战斗机飞行员失去意识情况 Two different physiological situations can lead to a pilot's loss of consciousness,says Elbit Systems senior research and development director, retired fighter pilot YaronKranz. 埃尔比特系统
VOA标准英语2015年(十二月)
You might think frogs catch insects cause their tongues are sticky. But why is the tongue sticky, and how does it actually adhere to these insects at these very high accelerations? 也许你认为青蛙能捕食昆虫是由于舌头很粘的缘故。但
2017年Scientific American(三)月
Frog Spit Behaves Like Bug-Catching Ketchup 青蛙唾液竟然类似番茄酱？ You might think frogs catch insects cause their tongues are sticky. But why is the tongue sticky, and how does it actually adhere to these insects at these very high acc
2017年科学美国人(七)月