仅仅拥有雷达预警系统而没有清晰具体的执行措施，结果仍然是失败的。

Having the radar system without clear and specific executions will also result in losses.

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基于雷达的鸟情探测的研究取得了很大进展，在一些发达国家已经建立起实用的雷达鸟击预警系统。

The studying of avian detection based on radar has made much progress and some practical radar avian surveillance systems have been set up.

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