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关注：1
2013-05-23 12:21
求翻译：A NASA study of rotorcraft accidents from 1963 to 1997 found that collisions with objects, hard landings, and roll-overs were responsible for over 36% of the incidents .是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
A NASA study of rotorcraft accidents from 1963 to 1997 found that collisions with objects, hard landings, and roll-overs were responsible for over 36% of the incidents .
问题补充： |
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2013-05-23 12:21:38
正在翻译，请等待...
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2013-05-23 12:23:18
美国航天局的一个研究rotorcraft意外的从1963到1997,找到与对象发生碰撞,硬着陆,并延期负责36%以上的事故。
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2013-05-23 12:24:58
A NASA study of rotorcraft accidents from 1963 to 1997 found that collisions with objects, hard landings, and roll-overs were responsible for over 36% of the incidents .
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2013-05-23 12:26:38
从 1963 年到 1997 年的旋翼飞机事故的美国国家航空航天局研究发现碰撞与对象、 硬着陆和翻车事件超过 36%的事件负责。
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2013-05-23 12:28:18
正在翻译，请等待...
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