蒙西陇东地区富水软岩地层冻结造孔施工技术研究
李林,刘宜和
The Research of Freezing Drilling in the West of The Inner Mongolia and the East of the Gansu Province
煤炭工程 . 2014, (4): 40 -42 .  DOI: 10.11799/ce201404014