Excellent heat resistance, cold resistance, ozone resistance, air aging resistance.

具有极佳的耐热、耐寒、耐臭氧、耐大气老化性能。

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The Lockheed Martin-made jets will replace the aging, Soviet-made MiG-21 Lancer aircraft now used by the Romanian air Force.

洛克希德·马丁公司制造的飞机将取代老化的，苏制米格- 21 Lancer飞机，Lancer现在由罗马尼亚的空军使用。

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"Although the link between air pollution and Alzheimer's disease is a new scientific frontier, we now have evidence that air pollution, like tobacco, is dangerous to the aging brain," he added.

“尽管空气污染和阿尔茨海默氏症之间的联系是一个新的科学前沿领域，但我们现在有证据证明，空气污染就像烟草一样，对不断老化的大脑有害，”他补充说。

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But his cast seems more than okay with their on-air aging.

FORBES: Magazine Article

But during the recession, the nation's aging air traffic system has enjoyed a reprieve in the form of sagging ridership.

CNN: Can technology fix the FAA's air traffic troubles?

The bad news: The FAA wants to replace these taxes with a more complicated combination of user fees and taxes in order to upgrade the nation's aging air traffic control system.

FORBES: Farewell, Airline Ticket Taxes