goaf management

例句：

1. 2.
   煤矿
2. 1. The company's new manager is responsible for the goaf management.
   公司的新任经理负责矿用充填材料的管理。
3. 2. The mine safety supervisor is in charge of the goaf management.
   矿山安全监督员负责矿用充填材料的管理。
4. 3.The engineers are responsible for the goaf management and the safety of the miners.
   工程师们负责矿用充填材料的管理和矿工的安全。