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.
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.
JEAN NACHEGA：“我们研究总的关键发现是，非洲接受艾滋病抗逆转录病毒疗法患者的预期寿命能够达到接近正常水平。”
JEAN NACHEGA: "the overall key finding of our study is that the patient in Africa receiving antiretroviral therapy for HIV can expect to live a near-normal lifespan."
核反应堆发电量仅为全球总发电量的14%，而其年龄中位数为27年（见图表），设计寿命一般为40年，许多反应堆正临近退役。
Nuclear reactors generate only 14% of the world's electricity, and with a median age of about 27 years (see chart) and a typical design life of 40 a lot are nearing retirement.
当总通道电阻超过了开关卡的指标时，则认为使用寿命终了。
End-of-life is generally considered to be the time when the total channel resistance exceeds the specifications for the switch card.
因此计数管的使用寿命不能仅以允许通过计数管的总电荷表示。
Thus the counting life of a counter can not be expressed merely in terms of quantity of electric charge passing through it.
建立了混凝土非线性疲劳损伤方程和变幅荷载下的疲劳破坏准则，分析了加载次序效应对总疲劳寿命的影响；
Found non-linear fatigue damage equation and fatigue failure criterion of concrete under variable amplitude load, and analyze the influence of loading sequence on total fatigue life;
考虑地震等自然灾害的影响，桥梁等交通基础设施全寿命总预期成本应包括结构初建成本、维修加固的预期费用及寿命期内的的灾害失效损失期望。
Considering the influence of natural disaster, especially earthquake, the life-cycle cost of transportation infrastructure consists of initial cost, maintenance cost, retrofit and loss expectation.
本文给出了制定定时截尾寿命试验下指数分布产品失效率的抽样检验方案的一个新方法，检验统计量是总试验时间。
This paper gives a new statistical method of working out a sampling inspection plan for the failure rate of exponential populations.
本文给出了制定定时截尾寿命试验下指数分布产品失效率的抽样检验方案的一个新方法，检验统计量是总试验时间。
A sampling inspection plan for the failure rate of GBVE distribution with the test statistic of total experimental time based on Type I censoring is presented.
以总试验时间为检验统计量，在定时截尾寿命试验下研究GBVE分布产品失效率的抽样检验方案，随机模拟结果显示此方法有效。
A sampling inspection plan for the failure rate of GBVE distribution with the test statistic of total experimental time based on Type I censoring is presented.
以总试验时间为检验统计量，在定时截尾寿命试验下研究GBVE分布产品失效率的抽样检验方案，随机模拟结果显示此方法有效。
A sampling inspection plan for the failure rate of GBVE distribution with the test statistic of total experimental time based on Type I censoring is presented.
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