单词：rotor oscillation
转子振动
单词：rotor oscillation 相关文章
By Jim Fry Washington 03 May 2007 Marine Osprey The U.S. Marines are preparing to send a new tilt rotor aircraft into combat for the first time. And the American manufacturer predicts a civilian version may soon appear over many of the world's citie
发表于:2019-01-07 / 阅读(232) / 评论(0)
2007年VOA标准英语（五月）
2007年VOA标准英语（五月）
1. The man accused of kidnapping two young boys has pleaded not guilty in one of the cases. Michael Devlin went before a judge this morning in the case of Ben Ownby. Meantime, the parents of Shawn Hornbeck, the other teen he's accused of kidnapping,
发表于:2019-01-08 / 阅读(213) / 评论(0)
美联社新闻一分钟2007
美联社新闻一分钟2007