本文首先分析了传统网络检索技术的局限性。
The limitation of current web search engine is presented first.
本文首先分析了西部农村妇女贫困的原因，总结了造成她们贫困的真正原因。
This article at first analyzes the causes of poverty of western rural women, summarizes the real roots resulting into their poverty.
本文首先分析了可靠性和寿命两个基本概念，并给出“节能寿命”的定义和相应的计算公式。
At first, this paper presents the fundamental concepts of reliability and life, gives the definition of "energy-saving life" as well as its calculating formula.
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