求翻译：房地产行业在我国国民经济中具有特殊的地位，本文选取了2011年第三季度我国沪深上市的125家房地产公司经营业绩的13个指标数据，然后用巴特利特球形检验（Bartlett Test of Sphericity）和KMO(Kaiser-Meyer-Olkin)检验验证指标的适合度，再用因子分析等方法对样本数据进行分析，并且对房地产上市公司做一个综合评价，进一步得出国民经济支柱房地产业中的实力企业，使我们更加直观的了解房地产行业。是什么意思？

The real estate industry has a special position in our national economy, selected 13 of the operating results of the third quarter of 2011, 125 real estate companies listed on the Shanghai and Shenzhen index data, and then (bartlett test of with Bartlett spherical test sphericity) and kmo (Kaiser-me

Real estate industry in the national economy in our country have a special status, this document has been selected the 2011 Q3 my Shanghai and Shenzhen 125 listing of real estate company operating results of the 13 indicators and data, and then use the test (the ball of Sphericity Bartlett Test KMO

A special position in the real estate industry in China's national economy, this article you have selected 125 of the third quarter of 2011, China's Shanghai and Shenzhen-listed real estate company 13 indicators of performance data, and then Bartlett ball test (Bartlett Test of Sphericity) and KMO (