|
||||||||
|
|
| 2012, Vol. 49(4): 89-93 DOI: | ||
| Construction Techniques for Advance Drilling in the Meilingguan Gas Tunnel on the Lanzhou-Chongqing Railway | ||
| 1 Lanzhou-Chongqing Railway Limited Liability Company 2 The 2nd Engineering Company of China Railway 18th Bureau Group Co., Ltd, | ||
| Received null Revised null | ||
| Supporting info | ||
|
