strata

• The economic division in contemporary chinese social strata
  当代中国社会阶层的经济分化
• One kind of the effort to tie the class and the stratum analysis
  赖特的阶级理论及其价值
• An analysis of all social strata of china in the new century
  新世纪的中国社会各阶层分析
• Adjust the social policy and build up the intermediate stratum
  调整社会政策培育中间阶层
• An investigation into the new social stratums in china
  关于我国新的社会阶层的调查与思考
• How does chinese society define the class and stratum
  摘要中国社会如何界定阶级与阶层？
• The retrospects and prospects of the stratum dividing research
  社会分层研究的回顾与展望
• Research on detecting technique for inferior strata combination
  岩层组合劣化探测技术研究
• Talk about the chinese economic essential stratum
  浅议中国经济主流阶层