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。

youdao

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。

youdao

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。

youdao

Further, consumers will start to replace its aging fleet and switch to more fuel-efficient cars.

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One of the big problems concerning ILFC is its aging fleet, declining fleet size and declining lease rate.

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It slashed new bus orders, leaving itself with an aging fleet (and a 5% jump in maintenance expenses).

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