战略与预算评估中心（CSBA）的报告，在分析美国为因应上述挑战，为何需要一种新型远程、性能稳定、侦察能力强大的轰炸机方面，内容非常详尽。

The CSBA report was thorough in its analysis of why the United States will need a new long-range, stealthy, penetrating bomber for the scenario just described.

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有歼击机、轰炸机、 侦察机。

They are fighters, bombers and reconnaissance planes.

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今天，我们已经拥有了无人驾驶侦察机、军用机器人和隐形轰炸机。

Today there are already unmanned spy planes, military robots and stealth bombers.

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