帮我英文翻译一下：其次通过介绍主成分法的概念、思路。并采用SPSS18.0对进行2010年全国31个省(区、市)社区卫生服务中心的中医药基本公共卫生服务情况调查所得的数据进行分析，给出了主成分法在社区卫生服务评价中的应用。
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By introducing the concept of principal ponent analysis, followed by ideas. And SPSS18.0 to make 2010 the country's 31 provinces (regions and cities) essential public health service center of traditional Chinese medicine in munity health service data for analysis of the survey, gives the application of principal ponent analysis in evaluation of munity health services.