booktheque
ספרים בחינם
ספרים
סופרים
קטגוריות
המלצות על ספרים
☀
English
Yifan Zeng
Yifan Zeng
2 ספרים במאגר
ספרים
Roof Water Disaster in Coal Mining in Ecologically Fragile Mining Areas
Yifan Zeng
Roof Water Disaster in Coal Mining in Ecologically Fragile Mining Areas
Yifan Zeng · 2023
Research on Risk Evaluation Methods of Groundwater Bursting from Aquifers Underlying Coal Seams and Applications to Coalfields of North China
Yifan Zeng
Research on Risk Evaluation Methods of Groundwater Bursting from Aquifers Underlying Coal Seams and Applications to Coalfields of North China
Yifan Zeng · 2018