Engineering and control tech . in gas section within wulong tunnel 重庆市武隆县地质灾害特征及防治对策研究
2.
Study on measures of ecological safety of the exploitation of tourism in wulong county 武隆县旅游开发中的生态安全对策研究
3.
Survey and analysis of rural children dropout situation in chongqing ' s poor areas - taking the survey of haokou town in wulong county in 2005 as an example 以2005年对武隆县浩口乡的调查为例
