The US Air Force, however, insisted: "Since the termination of Project Blue Book, nothing has occurred that would support a *resumption of UFO investigations".

但美国空军方面却坚持认为：“自“蓝皮书计划”终止后，没有任何事件可以支持重启UFO调查行动。

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Thee US Air Force, however, insisted: "Since the termination of Project Blue Book, nothing has occurred that would support a resumption of UFO investigations".

但美国空军方面却坚持认为：“自“蓝皮书计划”终止后，没有任何事件可以支持重启ufo调查行动。”

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It is pointed out that on the premise of meeting the codes, the stadium construction should use its metal roof and steel structure as direct lightning flash air-termination system.

指出体育场馆建筑在满足规范的前提下，应利用其金属屋面和钢结构作为直击雷接闪器。

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However, Gates conveniently omitted the fact that he had fired Air Force leaders who opposed termination of the F-22, and that dozens of studies conducted inside and outside the Air Force had found a need for more than the 187 planes he decided to buy (the independent study his office commissioned to make the case for early termination recommended 260 planes, so it was quietly shelved).

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The third problem, in addition to the infrastructure and the warheads themselves, is the fact that the Defense Department has been plagued with its own systemic problems which culminated in the high profile termination of the Secretary of the Air Force and the service's Chief of Staff.

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