Room temperature impact ductility decreased with the aging time increasing.

室温冲击韧度随时效时间的延长整体下降，为韧性断裂；

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The aging time is the number of seconds a MAC address will be kept in the forwarding database after having received a packet from this MAC address.

生存期是在接收一个包后其MAC地址保存在转发数据库中的秒数。

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The results show that the residual resistance ration relates not only to the aging temperature and the impurity concentration of the metal, but also to the aging time.

结果表明：金属铍的剩余电阻比不仅与时效温度和金属内杂质的浓度有关，而且受时效时间的影响；

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At the same time, the health care needs of aging populations are expected to grow, intensifying the shortage of nurses.

VOA: special.2010.06.07

Intrepid Soutter got an idea: why not lower the bar a bit on the oak barrels and aging time and bring a palatable product to the American market for a dollar or two less?

FORBES: High-tailing it

It can reduce issues around maternal health and high child fatality rates, which are leading to a combined global population that is both very young and aging at the same time.

FORBES: Living in a World of Seven Billion

The American dream is in peril from the confluence of sky rocketing deficits, high unemployment, and the ticking time bomb of an aging baby boomer generation, with its coincident increase in the burden of entitlements as a percentage of GDP.

FORBES: Can Cloud Computing Save The American Economy?