以下为句子列表：
英文: In this paper, by using the relevant data of Zhejiang Province in 2005, we introduce the Weighted Mean Method, Principal Component Analysis, Factor Analysis and Clustering Analysis to evaluate and rank the synthetic economic power of the 11 main cities of
中文: 摘要利用浙江省2005年有关统计数据，分别采用加权平均法、主成分分析法、因子分析法和聚类分析法对浙江省11个中心城市的综合经济实力进行了综合评价和排位。
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英文: We estimated the weighted mean differences or standardized mean differences, with their 95% confidence interals, in mechanical axis alignment, duration of surgery, and functional scales between naigated and conentional surgery.
中文: 对于导航和传统术式的力轴校直、手术时间和功能得分，我们计算了加权均数差值或标准均数差值的95%可行区间。
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