无人作战飞机的总寿命至少应该有20年，而且拥有先进的航空电子设备和电子战的能力。

The total life expectancy of the UCAV should be at least 20 years and the drone should have advanced avionics and electronic warfare capabilities.

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建立了一套由试验数据估算日历首翻期、日历翻修间隔、日历总寿命的方法和公式 ；提出了由使用中真实的腐蚀损伤数据来估算日历首翻期的方法 ；

A set of method and formula for the computation of calendar first D check, calendar time since overhaul and total calendar life is presented by using tests data.

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日本人寿命很长不是没有原因的，因为他们总愿意吃寿司。

Japanese long life is not without reason, because they are always willing to eat sushi.

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