Article 21 In coal mines, coal exploitation and environmental control shall be sychronized.
Article 21 In coal mines, coal exploitation and environmental control shall be sychronized.
第二十一条煤矿建设应当坚持煤炭开发与环境治理同步进行。
Article 21 In coal mines, coal exploitation and environmental control shall be sychronized.
第二十一条煤矿建设应当坚持煤炭开发与环境治理同步进行。