煤矸石 | méi gān shí | waste rock (in coal mining) | |
矸石 | gān shí | waste rock (mining); gangue (worthless minerals mixed in with coal or ore) | |
矸子 | gān zi | waste rock (mining); gangue (worthless minerals mixed in with coal or ore) |
1 | Rock category with a K-carrageenan a rally. | |
2 | The weathering layer thickness thickens with the increase of dumping years. | |
3 | Along with the increasing length of stopping discharging the gangue, the soil physical and chemical characteristics improve gradually. | |
4 | The effects of different operations on the preparation of activated gangue are studied by orthogonal test. | |
5 | The feasibility of selective crushing and separation of coal and gangue is explained by a lot of experiments firstly. |