这一发现让啤酒保质期的延长有了可能，对制造商和消费者来说都是好事。
The discovery paves the way for beersthat have a longer shelf life -- a boon to both brewers and consumers.
1971年发达国家人们寿命的期望值平均为65岁，到现在已经延长到68、69岁了。
Since 1971 the life expectancy of the average 65-year-old in the rich world has improved by four to five years.
电力系统实行状态检修的目的是为了延长设备寿命，确保发供电可靠性，降低检修成本，减少检修风险。
The reason of electric power system implements the status overhaul is to extend the life of equipment, and ensure the reliability of power supply, as well as reduce the cost and risk of overhaul.
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