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关注：1
2013-05-23 12:21
求翻译：Three hundred post-PRK students underwent flight training and were compared with over 4000 controls. The authors found the attrition rate of PRK-treated students was significantly lower than controls in the primary and intermediate phases of flight training.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
Three hundred post-PRK students underwent flight training and were compared with over 4000 controls. The authors found the attrition rate of PRK-treated students was significantly lower than controls in the primary and intermediate phases of flight training.
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
三百名之后的PRK学生接受了飞行训练和与4000控制比较。作者发现PRK被对待的学生的损耗率低于控制显着主要和中间阶段飞行训练。
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2013-05-23 12:24:58
三百名岗位PRK学生接受了飞行训练和与4000控制比较。 作者在主要和中间阶段低于控制发现了PRK被对待的学生的损耗率显着飞行训练。
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2013-05-23 12:26:38
三百年后 PRK 学生经历了飞行训练和与超过 4000 控件进行比较。作者发现自然减员的 PRK 治疗学生率大大低于控件中的初级和中级阶段的飞行训练。
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2013-05-23 12:28:18
0开机自检的PRK手术学生经历了飞行训练,并与之相比4000控件。 找到的作者的自然减员率的PRK手术的学生对待大大低于控制在初级阶段和中间阶段的飞行训练。
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