The State shall encourage coal mining enterprises to develop coal washing and processing as well as comprehensive exploitation and utilization of coalbed methane, gangue, coal slime, stone coal and peat.
英
美
- 国家鼓励煤矿企业发展煤炭洗选加工,综合开发利用煤层气、煤矸石、煤泥、石煤和泥炭。