我们需要决定反应堆核心的一期有多长，寿命，我们指的是，我们开始反应堆的时间到，我们需要换料的时间之间。
We have to decide on how long a life of the reactor core we want and by lifetime we mean the time from when we start the reactor to the time that we need to re-fuel.
这一研究报告发表在本月的美国心理学会核心杂志《健康心理学》上。研究还发现，男性拥有控制权和决定权将会延长寿命。
The report, in this month's APA journal Health Psychology, also discovered that male longevity was increased by control and decision authority.
疲劳裂纹扩展率表达式是采用疲劳裂纹扩展理论预报疲劳寿命的核心。
The fatigue crack growth rate is the core for predicting fatigue life by use of fatigue crack propagation (FCP) theory.
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