以下为句子列表：
英文: This paper discusses the existent typical ranking technologies of term frequency count and hyperlink analysis, in virtue of vector space model,the author proposes a new ranking technique,document similarity ranking,with a basis on similarity of concept-se
中文: 对现存典型的词频统计排序技术和超链分析排序技术进行了分析,并借助向量空间模型,提出了一种基于概念语义的查询词-文档相似度排序方法。
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英文: This paper introduces the basic concepts and importance of short-term frequency stability and phase noise, its expression in time domain and in frequency domain, the methods of measurements of phase noise and compares their advantages and disadvantages re
中文: 摘要叙述了短期频率稳定度、相位噪声的基本概念和重要性、在时域和频域中的表达方法以及各种相位噪声的测量方法，并且分别比较了各种方法间的优缺点。
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