Hongyan Qin
1 ta ish
North China Institute of Science and Technology
Research on Active Advanced Support Technology of Backfilling and Mining Face
Meng Wang, Jinshuai Su, Hongyan Qin +7
Maqola20242 iqtibosABI
Kashfiyot
Xizmatlar
Ishlab chiquvchilar uchun
1 ta ish
North China Institute of Science and Technology
Meng Wang, Jinshuai Su, Hongyan Qin +7