ISSN 2096-4498

   CN 44-1745/U

二维码
Stabilization and Drill Bit Replacement for Special Stratum of Upper Soft and Lower Hard Layers
HE Hua-Lin, WANG Feng-Ju
Tunnel Construction . 2009, (增刊1): 32 -35 .  DOI: B

Support by Beijing Magtech Co.ltd support@magtech.com.cn