Investigation and study, Zhang Youxi listened to the tiger dragon head on mine, coal mine production of convergence, security management, etc. reports.

调研中，张有喜等听取了虎龙沟煤矿负责人就该矿生产衔接、安全管理等情况的汇报。

youdao

Investigation and study, Zhang Youxi listened to the tiger dragon head on mine, coal mine production of convergence, security management, etc. reports.

调研中，张有喜等听取了虎龙沟煤矿负责人就该矿生产衔接、安全管理等情况的汇报。

youdao