Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
4 ta ish
China University of Mining and Technology
Hao Chen, Xing Wang, Cheng Liu +3
Hao Chen, Xing Wang, Jinfu Liu +3
Hao Chen, Yongqiang Liu, Fan Yang +11
Hao Chen, Jinfu Liu, Cheng Liu +4