Raptors, they said, were essential replacements for the aging US aircraft fleet.
他们说，正在老化的美国飞机机群必不可少的替换物就是猛禽战斗机。
The aging of the domestic fleet of about 237 million vehicles has been made possible by cars that are more durable and can be repaired more easily than in past recessions.
目前美国本土老化的车辆共有约2.37亿辆，与以往经济衰退期间出产的车相比，这些车更耐用，也更易于修理。
Not all of these problems have been due to the aging fleet, as many were signals to NASA that their continuing role in the cover-up over the presence of Planet X was not appreciated.
不是所有问题都是飞机的老化引起的，因为很多是对NASA的信号暗示他们在对X星存在的掩盖活动中持续扮演的角色不被欣赏。
The aging shuttle fleet has been fraught with so many problem that it has been difficult to get a successful launch of late.
老化的航天飞机一直存在着许多问题所以最近已经很难成功发射。
But now concerns over the safety of the aging fleet, added to the usual red ink, are bringing this chapter in aviation history to a close.
现如今考虑到年事已高的“飞行舰队”的安全性，再加上惯常的经济赤字，二者正在把航空史上协和飞机这一章带到尾声。
But now concerns over the safety of the aging fleet, added to the usual red ink, are bringing this chapter in aviation history to a close.
现如今考虑到年事已高的“飞行舰队”的安全性，再加上惯常的经济赤字，二者正在把航空史上协和飞机这一章带到尾声。
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